Description Summary:
The h2o HTTP server is vulnerable to memory exhaustion due to improper handling of excessive allocation requests, leading to potential denial-of-service.

Executive Summary:
An unauthenticated attacker can cause a denial-of-service condition in the h2o HTTP server by triggering excessive memory allocation requests.

Vulnerability Details

CVE-ID: CVE-2026-55213

Affected Software: h2o

Affected Versions: h2o h2o: < edd7a120bfc4af11ac0cbebce2a43cc1f93f9af1

Vulnerability: This vulnerability (CWE-789) occurs when the server fails to properly validate the size of memory allocation requests. An unauthenticated attacker can send crafted HTTP requests that force the server to allocate excessive memory, leading to a crash or service unavailability.

Business Impact

The primary impact is the loss of service availability. For businesses relying on h2o as a web or proxy server, this vulnerability can be exploited to take down critical public-facing infrastructure. The CVSS score of 7.5 highlights the severity of the threat to service availability via a network-based attack vector.

Remediation Plan

Immediate Action: Update to the latest version of h2o containing the fix (commit edd7a120bfc4af11ac0cbebce2a43cc1f93f9af1).

Proactive Monitoring: Monitor server memory usage and process stability; alert on sudden spikes in resource consumption or frequent service restarts.

Compensating Controls: Deploy a WAF to inspect incoming HTTP requests for unusual size or malformed headers that may be indicative of an attempt to trigger large memory allocations.

Exploitation Status

Public Exploit Available: False

Analyst Notes: As of July 12, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. Denial-of-service flaws in core HTTP servers are frequently targeted; therefore, proactive patching is essential.

Analyst Recommendation

Because this vulnerability allows for unauthenticated remote denial-of-service, it presents a significant risk to the uptime of web services. Administrators should prioritize updating their h2o installations to the version containing the commit fix to ensure robust protection against memory exhaustion attacks.

Description Summary:
Axios versions prior to 1.15.1 and 0.31.1 contain an SSRF vulnerability where an attacker can bypass NO_PROXY protections by using specific addresses within the 127.0.0.0/8 range.

Executive Summary:
A critical Server-Side Request Forgery vulnerability in the Axios HTTP client allows unauthenticated attackers to bypass proxy protections and access internal network resources.

Vulnerability Details

CVE-ID: CVE-2026-42043

Affected Software: Axios Axios

Affected Versions: >= 1.0.0, < 1.15.1; < 0.31.1

Vulnerability: This is a Server-Side Request Forgery (SSRF) flaw resulting from an incomplete fix for a previous vulnerability. An unauthenticated attacker capable of influencing the target URL can bypass NO_PROXY settings by targeting addresses in the 127.0.0.0/8 range, excluding 127.0.0.1.

Business Impact

The ability to bypass proxy restrictions allows attackers to perform requests against internal services that are otherwise protected from external access. This can lead to unauthorized data exfiltration or the manipulation of internal systems, resulting in significant security breaches. With a CVSS score of 7.2, this vulnerability represents a high-severity risk that could facilitate lateral movement within a corporate network.

Remediation Plan

Immediate Action: Update the Axios package to version 1.15.1 or 0.31.1 immediately to incorporate the necessary security patches.

Proactive Monitoring: Monitor outgoing traffic from servers utilizing Axios for requests destined for internal IP ranges, specifically looking for traffic originating from the 127.0.0.0/8 subnet.

Compensating Controls: Implement strict network-level egress filtering to prevent servers from initiating requests to sensitive internal infrastructure, effectively limiting the impact of a potential SSRF exploit.

Exploitation Status

Public Exploit Available: No (exploit_available: unknown)

Analyst Notes: As of April 26, 2026, there is no confirmed active exploitation in the wild; however, per CISA's SSVC assessment a proof-of-concept exists, so exploitation risk should be treated as credible. The vulnerability stems from a logical error in how the library handles proxy bypass lists, making it straightforward to trigger if an application accepts user-supplied URLs.

Analyst Recommendation

Given the prevalence of Axios in modern Node.js and browser-based applications, this vulnerability poses a significant risk to application integrity. Organizations must prioritize updating their dependencies to the fixed versions to ensure that internal network boundaries remain enforced and protected from external SSRF attacks.

Description Summary:
A prototype pollution gadget in the Axios HTTP adapter allows unauthenticated attackers to inject arbitrary HTTP headers into outgoing requests.

Executive Summary:
A critical prototype pollution vulnerability in the Axios HTTP client allows unauthenticated attackers to perform HTTP header injection, potentially leading to unauthorized data exfiltration or manipulation.

Vulnerability Details

CVE-ID: CVE-2026-42035

Affected Software: Axios Axios

Affected Versions: >= 1.0.0, < 1.15.1 and < 0.31.1

Vulnerability: This vulnerability involves a prototype pollution gadget located in the lib/adapters/http.js file, which misidentifies object payloads as FormData instances. By leveraging existing prototype pollution primitives, an unauthenticated attacker can force the application to execute attacker-controlled functions, resulting in the injection of malicious HTTP headers.

Business Impact

Successful exploitation allows an attacker to manipulate outgoing HTTP requests, which may facilitate server-side request forgery or the bypassing of security controls that rely on specific header values. Given the CVSS score of 7.4, this vulnerability poses a significant risk to the integrity of outgoing communications and the overall security posture of applications utilizing the affected Axios versions.

Remediation Plan

Immediate Action: Update the Axios package to version 1.15.1 or 0.31.1 immediately to incorporate the necessary patches for lib/adapters/http.js.

Proactive Monitoring: Review application logs for unusual HTTP header structures or unexpected outgoing traffic patterns that may indicate attempts to leverage header injection.

Compensating Controls: Ensure that no other dependencies within the application environment are susceptible to prototype pollution, as this vulnerability requires an existing pollution primitive to trigger the gadget.

Exploitation Status

Public Exploit Available: Unknown.

Analyst Notes: As of April 26, 2026, there is no confirmed active exploitation in the wild; however, per CISA's SSVC assessment a proof-of-concept exists, so exploitation risk should be treated as credible. The vulnerability is highly dependent on the presence of a separate prototype pollution source within the application dependency tree, making it a sophisticated but dangerous gadget.

Analyst Recommendation

Organizations must prioritize the update of the Axios library to the specified fixed versions to eliminate the prototype pollution gadget. Because this flaw can be triggered by vulnerabilities in other project dependencies, a comprehensive audit of the entire software supply chain is recommended to ensure no underlying prototype pollution primitives remain active.

Description Summary:
Axios is vulnerable to prototype pollution, allowing unauthenticated attackers to intercept JSON responses or hijack HTTP transport mechanisms if Object.prototype is polluted by a co-dependency.

Executive Summary:
A high-severity prototype pollution vulnerability in the Axios HTTP client allows unauthenticated attackers to intercept data or hijack requests, posing a significant risk to application integrity.

Vulnerability Details

CVE-ID: CVE-2026-42033

Affected Software: Axios

Affected Versions: >= 1.0.0, < 1.15.1, < 0.31.1

Vulnerability: This is a prototype pollution vulnerability (CWE-1321) occurring because Axios lacks proper hasOwnProperty guards when reading keys. An unauthenticated attacker can exploit this behavior if a separate co-dependency has already polluted the Object.prototype.

Business Impact

Successful exploitation allows an attacker to silently intercept and modify sensitive JSON responses or fully hijack the underlying HTTP transport. This results in potential unauthorized access to request credentials, headers, and request bodies. With a CVSS score of 7.4, this vulnerability represents a significant risk to data confidentiality and integrity, potentially leading to complete compromise of sensitive information processed by the application.

Remediation Plan

Immediate Action: Update the Axios package to version 1.15.1 or 0.31.1 immediately to incorporate the required hasOwnProperty guards.

Proactive Monitoring: Review application logs for unexpected changes in outgoing request headers or inconsistencies in incoming JSON response structures that may indicate interception.

Compensating Controls: Ensure all dependencies within the application process are audited for prototype pollution vulnerabilities, as this flaw requires a separate source of pollution to be triggered.

Exploitation Status

Public Exploit Available: No confirmed public exploit (none identified in current enrichment data).

Analyst Notes: As of April 26, 2026, there is no confirmed active exploitation in the wild; however, per CISA's SSVC assessment a proof-of-concept exists, so exploitation risk should be treated as credible. The vulnerability relies on a prerequisite state of prototype pollution, making it highly dependent on the broader application environment.

Analyst Recommendation

Given the potential for complete request hijacking and data interception, this vulnerability requires immediate attention. Security teams should prioritize updating Axios to the patched versions across all development and production environments. Furthermore, developers should perform a thorough audit of all project dependencies to ensure no other packages are introducing prototype pollution into the runtime environment.

Description Summary:
An authentication bypass vulnerability in Apache Camel allows unauthenticated access to protected routes and management endpoints when non-root context paths are configured.

Executive Summary:
A critical authentication bypass flaw in the Apache Camel platform permits unauthenticated users to access sensitive management endpoints and business routes, posing a high risk of unauthorized information disclosure.

Vulnerability Details

CVE-ID: CVE-2026-40022

Affected Software: Apache Software Foundation Apache Camel Platform HTTP Main

Affected Versions: 4.14.1 up to 4.14.6, 4.18.0 up to 4.18.2

Vulnerability: This is an authentication bypass (CWE-288) where the authentication handler only matches the exact configured context path rather than its subpaths. Consequently, unauthenticated requests to subpaths of protected routes are processed without credential challenges, exposing sensitive metadata.

Business Impact

The vulnerability allows attackers to bypass security controls and access sensitive management endpoints, such as the /observe/info route. This can result in the exposure of critical runtime metadata including internal process IDs, system paths, and environment details. Given the CVSS score of 8.2, this represents a significant security breach potential that could facilitate further reconnaissance and exploitation of the backend infrastructure.

Remediation Plan

Immediate Action: Update the Apache Camel component to version 4.14.6, 4.18.2, or 4.20.0 as provided in the Maven repository.

Proactive Monitoring: Review web server and application access logs for unusual patterns of unauthenticated requests targeting /api or /admin subpaths.

Compensating Controls: Deploy a Web Application Firewall (WAF) to block unauthorized attempts to access management endpoints if immediate patching is not feasible.

Exploitation Status

Public Exploit Available: Yes, a public proof-of-concept repository exists on GitHub.

Analyst Notes: As of April 29, 2026, there is no public information indicating active exploitation in the wild. However, the availability of a public proof-of-concept makes this vulnerability highly accessible to unauthorized parties. The flaw is inherently dangerous due to the ease of bypassing authentication for management routes.

Analyst Recommendation

This vulnerability presents a severe risk to the confidentiality of system metadata and internal application logic. Administrators must prioritize the update to the patched versions of Apache Camel, as this is the only definitive way to resolve the path-matching logic error. Failure to patch may leave your environment vulnerable to unauthorized reconnaissance and potential follow-on attacks.

Description Summary:
A buffer over-read vulnerability exists in Apache HTTP Server versions through 2.4.66, potentially allowing unauthenticated attackers to read sensitive memory contents.

Executive Summary:
An unauthenticated buffer over-read vulnerability in Apache HTTP Server versions through 2.4.66 permits remote memory exposure, presenting a high risk to application confidentiality.

Vulnerability Details

CVE-ID: CVE-2026-34059

Affected Software: Apache Software Foundation HTTP Server

Affected Versions: 0 through 2.4.66

Vulnerability: This flaw is classified as a Buffer Over-read (CWE-126), where unauthenticated attackers can exploit the server via network vectors without requiring user interaction.

Business Impact

The exposure of sensitive server memory can lead to the unauthorized disclosure of confidential data, including session tokens, credentials, or internal configuration details. With a CVSS base score of 7.5, the vulnerability is classified as high severity, reflecting its potential to compromise the confidentiality of affected systems without requiring prior authentication.

Remediation Plan

Immediate Action: Upgrade Apache HTTP Server to version 2.4.67 or later, as provided in the vendor security advisory.

Proactive Monitoring: Review web server error logs and access logs for unusual request patterns, abnormally large responses, or repeated connection resets that may indicate probing.

Compensating Controls: Deploy a Web Application Firewall configured to inspect HTTP traffic for malformed requests or abnormal headers that target vulnerable server endpoints.

Exploitation Status

Public Exploit Available: No

Analyst Notes: As of May 5, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw presents a low immediate exploitation probability according to EPSS metrics, but its unauthenticated, network-accessible nature necessitates prompt patching.

Analyst Recommendation

Given the high severity score and the potential for unauthorized data disclosure, IT administrators should prioritize upgrading Apache HTTP Server instances to version 2.4.67 immediately. Testing and deployment of the patch should be expedited to eliminate exposure to memory over-read attacks.

Description Summary:
PinchTab, an HTTP server for AI agents, contains a vulnerability that could allow for unauthorized control over Chrome browser instances.

Executive Summary:
A security flaw in the PinchTab HTTP server could allow attackers to hijack AI-driven browser sessions, leading to unauthorized data access or malicious browser activity.

Vulnerability Details

CVE-ID: CVE-2026-30834

Affected Software: PinchTab HTTP Server

Affected Versions: See vendor advisory for affected versions

Vulnerability: PinchTab is a standalone HTTP server designed to give AI agents control over Chrome. The vulnerability likely involves an authentication bypass or insecure API endpoint that allows an attacker to intercept or issue commands to the browser instance controlled by the AI.

Business Impact

The CVSS score of 7.5 indicates a High severity. If exploited, an attacker could steal session cookies, access sensitive web accounts, or use the hijacked browser to perform actions on behalf of the user, resulting in a significant breach of privacy and potential financial loss.

Remediation Plan

Immediate Action: Update the PinchTab server software to the latest version and ensure that all AI agent communication is encrypted and authenticated.

Proactive Monitoring: Monitor the HTTP server logs for unexpected connections or commands that do not originate from authorized AI agent sources.

Compensating Controls: Restrict access to the PinchTab HTTP server to the local host or a dedicated, secure management network using firewall rules.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of March 9, 2026, there is no public information indicating active exploitation of this vulnerability. As AI integration grows, these types of bridge applications will become increasingly high-value targets.

Analyst Recommendation

The intersection of AI and browser control presents a unique security risk. It is imperative to apply the primary remediation immediately to prevent attackers from gaining control over automated browser sessions and the sensitive data they handle.

Description Summary:
A NULL pointer dereference in mod_dav_lock in Apache HTTP Server allows an unauthenticated remote attacker to cause a denial of service.

Executive Summary:
A NULL pointer dereference vulnerability in Apache HTTP Server 2.4.66 and earlier allows unauthenticated remote attackers to trigger denial of service conditions by crashing the server.

Vulnerability Details

CVE-ID: CVE-2026-29169

Affected Software: Apache Software Foundation HTTP Server

Affected Versions: Apache HTTP Server 0 through 2.4.66

Vulnerability: This flaw is classified as a NULL Pointer Dereference (CWE-476) residing in the mod_dav_lock module. An unauthenticated attacker can send a maliciously crafted request over the network to trigger the dereference, requiring no user interaction.

Business Impact

A successful exploitation of this vulnerability results in server crashes, leading to service disruption and potential downtime for web applications hosted on the affected infrastructure. With a CVSS score of 7.5, the high availability impact poses significant operational risks for organizations relying on Apache HTTP Server for public facing services, threatening business continuity.

Remediation Plan

Immediate Action: Upgrade Apache HTTP Server to version 2.4.66 or later, or alternatively remove the vulnerable mod_dav_lock module if it is not required for your environment.

Proactive Monitoring: Monitor server error logs for recurrent restarts and unusual crash signatures associated with module faults, as well as tracking unexpected spikes in network traffic.

Compensating Controls: Deploy Web Application Filters or reverse proxies to inspect incoming HTTP requests and block malformed payloads targeted at WebDAV functionalities.

Exploitation Status

Public Exploit Available: false / unknown

Analyst Notes: As of May 6, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw presents a low technical barrier to exploitation due to its remote and unauthenticated nature, making prompt patching critical.

Analyst Recommendation

Organizations utilizing Apache HTTP Server must treat this high severity advisory with urgency by auditing their current software versions. Apply the recommended vendor security updates immediately to eliminate the underlying NULL pointer dereference risk and prevent potential denial of service attacks.

Description Summary:
An allocation of resources without limits or throttling vulnerability in Apache HTTP Server mod_md via OCSP response data allows unauthenticated attackers to impact availability and integrity.

Executive Summary:
A resource exhaustion vulnerability in Apache HTTP Server versions 2.4.30 through 2.4.66 allows unauthenticated attackers to cause denial of service conditions or unauthorized actions via crafted OCSP response data.

Vulnerability Details

CVE-ID: CVE-2026-29168

Affected Software: Apache Software Foundation HTTP Server

Affected Versions: Apache HTTP Server 2.4.30 through 2.4.66

Vulnerability: This issue involves an allocation of resources without limits or throttling vulnerability within the mod_md module via OCSP response data, requiring no authentication.

Business Impact

A successful exploit against Apache HTTP Server can lead to partial loss of confidentiality, integrity, and availability, causing potential system downtime and operational disruption. The CVSS score of 7.3 places this issue in the high severity range, reflecting the remote network vector and the absence of required privileges for successful execution.

Remediation Plan

Immediate Action: Upgrade Apache HTTP Server to version 2.4.67 or later where this vulnerability is resolved.

Proactive Monitoring: Monitor server resource utilization such as CPU and memory consumption, alongside HTTP error logs for anomalous requests related to mod_md or OCSP processing.

Compensating Controls: Implement rate limiting and Web Application Firewall rules to inspect and filter incoming OCSP response traffic if immediate patching is not feasible.

Exploitation Status

Public Exploit Available: No

Analyst Notes: As of May 6, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw presents a remote exploitation vector due to improper resource management during OCSP response handling.

Analyst Recommendation

Administrators must treat this high severity vulnerability with urgency by scheduling maintenance windows to apply the version 2.4.67 update. Ensuring timely remediation prevents potential resource exhaustion and protects web services from remote exploitation.

Description Summary:
The Axios HTTP client library is vulnerable to a denial of service attack via the mergeConfig function, which crashes when processing configuration objects containing a proto property.

Executive Summary:
A critical denial of service vulnerability in the Axios library allows unauthenticated attackers to crash applications by supplying malicious configuration objects.

Vulnerability Details

CVE-ID: CVE-2026-25639

Affected Software: Axios HTTP Client

Affected Versions: >= 1.0.0, < 1.13.5; < 0.30.3

Vulnerability: The vulnerability resides in the mergeConfig function, which fails to properly validate input when processing configuration objects. An unauthenticated attacker can trigger a TypeError by injecting a proto property, resulting in a complete application crash.

Business Impact

Successful exploitation leads to a complete denial of service for any application relying on the affected versions of Axios. Given the widespread use of this library in both browser and Node.js environments, this could result in significant operational downtime for critical web services. With a CVSS score of 7.5, the vulnerability is classified as High severity due to the ease of exploitation and the potential for total service interruption.

Remediation Plan

Immediate Action: Update the Axios package to version 1.13.5 or 0.30.3 immediately to incorporate the necessary input validation fixes.

Proactive Monitoring: Monitor application logs for unexpected TypeError exceptions or service restarts occurring during HTTP request processing.

Compensating Controls: Implement strict input validation on any user-supplied JSON data before passing it to Axios configuration objects to prevent the injection of malicious properties.

Exploitation Status

Public Exploit Available: Unknown

Analyst Notes: As of February 10, 2026, there is no public information indicating active exploitation or a published proof-of-concept for this vulnerability. The flaw is inherently dangerous due to its ability to cause an unrecoverable crash via simple JSON input.

Analyst Recommendation

The risk posed by this vulnerability is significant due to the fundamental nature of the Axios library in modern web development. Security teams must prioritize updating the dependency to the patched versions to prevent potential service instability. Given the simplicity of the attack vector, failure to patch leaves applications exposed to trivial denial of service attacks that could be automated by malicious actors.

Description Summary:
A path traversal vulnerability in frustratedProton http-server versions 1.0 and below allows unauthenticated remote attackers to read arbitrary files via malicious HTTP GET requests.

Executive Summary:
An unauthenticated path traversal vulnerability in the frustratedProton http-server enables remote attackers to access arbitrary files on the host system, posing a significant risk to data confidentiality.

Vulnerability Details

CVE-ID: CVE-2026-24469

Affected Software: frustratedProton http-server

Affected Versions: <= 1.0

Vulnerability: The application is susceptible to a path traversal flaw (CWE-22) within the RequestHandler::handleRequest method. An unauthenticated attacker can supply crafted ../ sequences in an HTTP GET request to bypass directory restrictions and access files outside the intended web root.

Business Impact

Successful exploitation of this vulnerability permits unauthorized access to sensitive files residing on the server filesystem. Given the CVSS score of 7.5, this high-severity flaw could lead to the exposure of configuration files, credentials, or proprietary source code, potentially resulting in full system compromise or severe operational impact.

Remediation Plan

Immediate Action: As no patch is currently available, administrators should restrict access to the http-server instance using network-level controls or by disabling the service until a fix is released.

Proactive Monitoring: Monitor server access logs for HTTP GET requests containing directory traversal sequences, such as multiple instances of ../ or encoded path characters.

Compensating Controls: Deploy a Web Application Firewall (WAF) to filter and block incoming requests containing directory traversal patterns before they reach the server application.

Exploitation Status

Public Exploit Available: Unknown.

Analyst Notes: As of January 25, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw is inherently dangerous due to the lack of input sanitization on user-supplied paths, which allows for direct filesystem access.

Analyst Recommendation

Due to the lack of an available patch, organizations currently utilizing frustratedProton http-server version 1.0 or lower should prioritize the implementation of strict network access controls or move the service to a protected network segment. Continuous monitoring for malicious traffic patterns is essential until an official vendor update is applied to remediate the underlying code deficiency.

Description Summary:
A double free vulnerability in Apache HTTP Server using the HTTP/2 protocol may allow remote code execution.

Executive Summary:
A double free vulnerability in Apache HTTP Server version 2.4.66 allows authenticated attackers to achieve remote code execution via the HTTP/2 protocol, posing a severe risk to infrastructure stability and data confidentiality.

Vulnerability Details

CVE-ID: CVE-2026-23918

Affected Software: Apache Software Foundation HTTP Server

Affected Versions: Apache Software Foundation Apache HTTP Server: 2.4.66

Vulnerability: This flaw involves a memory management error under CWE-415, specifically a double free condition within the HTTP/2 protocol handling modules, requiring low privileges and network access for exploitation.

Business Impact

A successful exploitation of this vulnerability could grant attackers complete control over the affected web server, leading to total confidentiality, integrity, and availability loss. With a CVSS score of 8.8, the high severity rating reflects the potential for catastrophic system compromise, unauthorized data access, and extended operational downtime.

Remediation Plan

Immediate Action: Upgrade Apache HTTP Server immediately to version 2.4.67 or later.

Proactive Monitoring: Monitor server access logs and error logs for unusual traffic patterns, unexpected process terminations, or abnormal resource utilization related to HTTP/2 requests.

Compensating Controls: Implement Web Application Firewall rules to filter anomalous HTTP/2 protocol requests or restrict network access to trusted administrative zones where feasible.

Exploitation Status

Public Exploit Available: Yes, an ExploitDB entry and multiple public proof-of-concept repositories exist.

Analyst Notes: As of May 6, 2026, there is no confirmed active exploitation in the wild, but public proof-of-concept code and exploit artifacts are available, so exploitation risk should be treated as high. The underlying memory management defect provides a direct path toward system exploitation if patches are deferred.

Analyst Recommendation

Organizations running the affected version of Apache HTTP Server must treat this vulnerability with utmost urgency due to the high CVSS score and the availability of public exploit materials. Applying the vendor-supplied patch to version 2.4.67 is critical to neutralize the remote code execution vector.

Description Summary:
The aiohttp library is vulnerable to a zip bomb attack, allowing unauthenticated attackers to trigger a denial of service by exhausting host memory through excessive data decompression.

Executive Summary:
Unauthenticated attackers can cause a denial of service in aiohttp applications by sending specially crafted, highly compressed requests that exhaust system memory.

Vulnerability Details

CVE-ID: CVE-2025-69223

Affected Software: aio-libs aiohttp

Affected Versions: < 3.13.3

Vulnerability: This vulnerability involves improper handling of highly compressed data (CWE-409) and resource allocation without limits (CWE-770). An unauthenticated attacker can send a malicious request that results in extreme memory consumption during decompression, effectively crashing the server.

Business Impact

The exploitation of this vulnerability leads to a denial of service, which can cause significant operational disruption for web services relying on the aiohttp framework. With a CVSS score of 7.5, this high-severity flaw poses a direct risk to service availability, potentially impacting customer-facing applications and internal infrastructure.

Remediation Plan

Immediate Action: Update the aiohttp library to version 3.13.3 or later to apply the necessary resource limits and prevent decompression-based memory exhaustion.

Proactive Monitoring: Monitor server memory usage patterns and web server logs for unusually large, compressed, or malformed HTTP requests that may indicate an attempted zip bomb attack.

Compensating Controls: Implement strict request size limits at the load balancer or reverse proxy level to reject oversized payloads before they reach the aiohttp application.

Exploitation Status

Public Exploit Available: No (exploit_available unknown).

Analyst Notes: As of January 7, 2026, there is no public information indicating active exploitation or a published proof-of-concept for this vulnerability. The flaw is inherently dangerous due to its ability to be triggered by an unauthenticated remote attacker with minimal effort.

Analyst Recommendation

Given the high impact on system availability and the relative ease of triggering this vulnerability, administrators should prioritize updating the aiohttp dependency in all production environments. Ensuring that the library is patched to version 3.13.3 is the most effective way to eliminate the risk of resource exhaustion attacks.

Description Summary:
Axios is vulnerable to a denial of service attack when processing data URIs, as it fails to enforce memory limits, allowing an attacker to cause an unbounded memory allocation and process crash.

Executive Summary:
The Axios HTTP client is vulnerable to a denial of service attack that can crash Node.js applications by forcing unbounded memory allocation via malicious data URIs.

Vulnerability Details

CVE-ID: CVE-2025-58754

Affected Software: Axios

Affected Versions: >= 1.0.0, < 1.12.0; >= 0.28.0, < 0.30.2

Vulnerability: This vulnerability is a resource exhaustion flaw (CWE-770) occurring because the Node.js http adapter does not limit memory allocation when processing a URL with the data scheme. This issue is unauthenticated and can be triggered by any actor capable of providing a URL to the Axios client.

Business Impact

The vulnerability carries a CVSS score of 7.5, indicating a high severity risk due to the ease of triggering a denial of service. Successful exploitation can lead to significant application downtime, service unavailability, and potential resource exhaustion for the underlying hosting infrastructure.

Remediation Plan

Immediate Action: Update the Axios package to version 1.12.0 or 0.30.2 to incorporate the necessary memory limit protections.

Proactive Monitoring: Monitor application logs and system resource metrics, such as memory usage spikes or Node.js process crashes, which may indicate attempted exploitation.

Compensating Controls: Implement input validation to restrict the types of URI schemes accepted by the application, specifically disallowing the use of data URIs if they are not required for core functionality.

Exploitation Status

Public Exploit Available: Unknown.

Analyst Notes: As of September 12, 2025, there is no confirmed active exploitation in the wild; however, per CISA's SSVC assessment a proof-of-concept exists, so exploitation risk should be treated as credible. The flaw is inherently dangerous as it bypasses existing length protections by synthetic response generation.

Analyst Recommendation

Given the high CVSS score and the potential for service disruption, organizations should prioritize updating Axios to the patched versions immediately. If an immediate update is not feasible, restrict the inputs processed by Axios to prevent the submission of malicious data URIs until the patch can be deployed.

Description Summary:
Small HTTP Server version 3.06.36 contains a path traversal vulnerability that allows authenticated users to access files outside of the configured document root.

Executive Summary:
A path traversal vulnerability in Small HTTP Server allows authenticated users to bypass security restrictions and access unauthorized files on the host system.

Vulnerability Details

CVE-ID: CVE-2025-41368

Affected Software: Smallsrv Small HTTP Server

Affected Versions: 3.06.36

Vulnerability: This is a path traversal flaw (CWE-22) located in the root directory handling of the server, which can be triggered by any authenticated user to bypass the SecurityManager and read arbitrary files.

Business Impact

The ability to perform unauthorized file access poses a severe risk to data confidentiality and system integrity. With a CVSS score of 8.1, this high-severity vulnerability could allow an attacker to retrieve sensitive configuration files, credentials, or proprietary data, potentially leading to a full system compromise.

Remediation Plan

Immediate Action: Update the Small HTTP Server installation to version 3.06.38 or later to resolve the underlying path traversal issue.

Proactive Monitoring: Review web server access logs for anomalous request patterns, specifically those containing directory traversal sequences like double dots or absolute path references.

Compensating Controls: Implement a Web Application Firewall (WAF) to filter and block requests containing directory traversal payloads directed at the server root.

Exploitation Status

Public Exploit Available: Unknown

Analyst Notes: As of March 28, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. While the vulnerability requires authentication, the potential for total impact on the affected system necessitates prompt patching.

Analyst Recommendation

The vulnerability presents a significant risk to the security of the Small HTTP Server environment. Administrators should prioritize upgrading to version 3.06.38 immediately to eliminate the path traversal vector. Continued vigilance through log monitoring is advised to detect any attempts to leverage this or similar flaws during the transition period.

Description Summary:
Small HTTP Server 3.06.36 contains an unquoted service path vulnerability, allowing local attackers to achieve arbitrary code execution by placing a malicious executable in a higher priority directory.

Executive Summary:
A critical unquoted service path vulnerability in Small HTTP Server 3.06.36 allows local attackers to execute arbitrary code with elevated privileges.

Vulnerability Details

CVE-ID: CVE-2025-41359

Affected Software: Smallsrv Small HTTP Server

Affected Versions: 3.06.36

Vulnerability: The software uses an unquoted service path for the executable, which permits a local user to escalate privileges by placing a rogue binary in a directory that the service path resolves to before the legitimate executable. This flaw requires local access but allows an attacker to bypass standard security boundaries.

Business Impact

Successful exploitation grants an attacker the ability to run arbitrary code on the host system with the privileges of the service, typically resulting in full system compromise. Given the CVSS score of 7.8, this represents a high-severity risk to confidentiality, integrity, and availability that could lead to unauthorized data access or complete service disruption.

Remediation Plan

Immediate Action: Update the Small HTTP Server installation to version V3.06.38 or later to resolve the path configuration issue.

Proactive Monitoring: Review system event logs for unauthorized service installations or unexpected process executions originating from the application directory.

Compensating Controls: If an immediate update is not possible, ensure that directory permissions for the service path are strictly locked down to prevent non-administrative users from writing or modifying files in the parent directories.

Exploitation Status

Public Exploit Available: Unknown

Analyst Notes: As of March 28, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. While this flaw requires local access, the inherent risk of path hijacking is significant in multi-user environments.

Analyst Recommendation

The risk posed by this vulnerability is significant due to the potential for local privilege escalation and arbitrary code execution. Administrators should prioritize upgrading to version V3.06.38 immediately to remediate the path configuration flaw and prevent potential system takeover by local actors.

Description Summary:
Catalyst::Authentication::Credential::HTTP generates insecure nonces using the Data::UUID library, which relies on a cryptographically weak pseudo-random number generator.

Executive Summary:
A critical vulnerability in the Catalyst::Authentication::Credential::HTTP Perl module allows for the generation of predictable nonces, potentially facilitating authentication bypasses.

Vulnerability Details

CVE-ID: CVE-2025-40920

Affected Software: Perl Catalyst::Authentication::Credential::HTTP

Affected Versions: 0.06 through 1.018

Vulnerability: The module utilizes the Perl Data::UUID library to generate nonces, which fails to provide a cryptographically secure source of randomness. Because the nonces are predictable, an unauthenticated attacker could potentially forge authentication tokens to gain unauthorized access to the application.

Business Impact

The use of predictable nonces undermines the integrity of the authentication mechanism, potentially allowing unauthorized access to sensitive application data or administrative functions. With a CVSS score of 8.6, this flaw represents a High severity risk that could lead to full account compromise if exploited by a remote, unauthenticated adversary.

Remediation Plan

Immediate Action: Upgrade to Catalyst-Authentication-Credential-HTTP version 1.019 or later to implement secure cryptographic nonce generation.

Proactive Monitoring: Monitor authentication logs for patterns of suspicious or rapid-fire login attempts that may indicate nonce prediction or brute-force testing.

Compensating Controls: If an immediate update is not feasible, restrict access to the affected web application via network-level controls or a Web Application Firewall to mitigate exposure to unauthenticated external traffic.

Exploitation Status

Public Exploit Available: Unknown

Analyst Notes: As of August 12, 2025, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw is inherently dangerous due to the reliance on weak randomness for security-critical identifiers.

Analyst Recommendation

The reliance on predictable identifiers for authentication is a severe security defect that requires immediate remediation. Administrators should prioritize the update to version 1.019 across all environments to ensure that cryptographic nonces meet modern security standards. Failure to patch this vulnerability leaves the authentication process susceptible to bypass attacks.

Description Summary:
Crystal Live HTTP Server 6.01 is vulnerable to directory traversal, allowing unauthenticated remote attackers to retrieve sensitive system files via malicious URL path segments.

Executive Summary:
A directory traversal vulnerability in Genivia Crystal Live HTTP Server 6.01 allows unauthenticated attackers to access sensitive system files, posing a significant risk to server integrity.

Vulnerability Details

CVE-ID: CVE-2019-25352

Affected Software: Genivia Crystal Live HTTP Server

Affected Versions: 6.01

Vulnerability: The application suffers from a path traversal vulnerability (CWE-22) where improper sanitization of URL path segments allows an unauthenticated attacker to escape the web root using "../" sequences. This permits unauthorized access to arbitrary files on the underlying file system.

Business Impact

The ability for an unauthenticated attacker to read arbitrary files from the server presents a critical risk to confidentiality. An attacker could extract configuration files, credentials, or sensitive system data, which often serves as a precursor to full system compromise or lateral movement within the network. Given the CVSS score of 7.5, this high-severity flaw requires immediate attention to prevent data exposure and potential service disruption.

Remediation Plan

Immediate Action: Since there is no official patch available from the vendor for this legacy version, you must restrict access to the affected server by placing it behind a robust firewall or disabling the service if it is not business critical.

Proactive Monitoring: Review web server access logs for anomalous requests containing directory traversal patterns, such as multiple consecutive "../" sequences.

Compensating Controls: Implement a Web Application Firewall (WAF) to inspect incoming HTTP requests and block any traffic that attempts to traverse directories or access sensitive system paths.

Exploitation Status

Public Exploit Available: Yes, a functional proof-of-concept exists and is documented in the Exploit-DB entry 47666.

Analyst Notes: As of February 20, 2026, there is no confirmed active exploitation in the wild; however, per CISA's SSVC assessment a proof-of-concept exists, so exploitation risk should be treated as credible. The vulnerability is inherently easy to exploit as it requires no authentication and utilizes standard HTTP requests to retrieve files.

Analyst Recommendation

Due to the availability of public exploit code and the lack of a vendor-supplied patch, this vulnerability poses an elevated risk to environments running Crystal Live HTTP Server 6.01. Organizations should prioritize isolating these systems from the public internet or migrating to a supported, secure alternative to mitigate the risk of information disclosure.