CVE-2026-82268

7.5

QwenLM · Qwen-Agent

Qwen-Agent contains a server-side request forgery vulnerability in the document parsing module that allows unauthenticated attackers to make the server issue requests to arbitrary internal addresses.

Executive summary

An unauthenticated server-side request forgery vulnerability in Qwen-Agent enables attackers to perform unauthorized internal network requests and access sensitive metadata services.

Vulnerability

The application fails to validate the host and scheme of caller-supplied paths within the document parsing utility. This allows an unauthenticated attacker to supply malicious URLs, forcing the server to retrieve content from internal network resources or cloud metadata services.

Business impact

Successful exploitation of this vulnerability poses a significant risk to internal infrastructure. By leveraging the server as a proxy, an attacker can bypass perimeter firewalls to scan internal networks, interact with private services, or exfiltrate sensitive configuration data from cloud metadata endpoints. Given the CVSS score of 7.5, this high-severity flaw requires immediate attention to prevent potential lateral movement and information disclosure within the environment.

Remediation

Immediate Action: Monitor vendor communication channels for the release of a patched version of Qwen-Agent and upgrade immediately upon availability.

Proactive Monitoring: Review application and network access logs for unusual outbound HTTP requests originating from the server hosting Qwen-Agent, specifically targeting internal IP ranges or metadata service addresses (e.g., 169.254.169.254).

Compensating Controls: Deploy or update Web Application Firewall (WAF) rules to inspect and filter requests containing document parsing parameters, blocking attempts to resolve private or non-routable IP addresses.

Exploitation status

Public Exploit Available: Unknown

Analyst recommendation

The vulnerability in Qwen-Agent represents a critical risk to the internal network integrity of any deployment. Administrators should prioritize identifying instances of the affected software and implementing strict network egress filtering to restrict the server from accessing internal or sensitive metadata endpoints until a formal patch can be applied. Failure to address this could lead to unauthorized access to internal resources.

More QwenLM CVEs

Sources

Originally found and disclosed by George Chen, per the CVE Program record.