minimatch is a minimal matching utility for converting glob expressions into JavaScript RegExp objects
Description
minimatch is a minimal matching utility for converting glob expressions into JavaScript RegExp objects
AI Analyst Comment
Remediation
Apply vendor security updates immediately. Monitor for exploitation attempts and review access logs.
---METADATA---
VENDOR: Isaacs
PRODUCT: minimatch
AFFECTED_VERSIONS: See vendor advisory for specific affected versions
---END_METADATA---
Description Summary:
A second high-severity vulnerability in the minimatch JavaScript library could lead to system resource exhaustion or security bypasses when processing glob expressions.
Executive Summary:
The minimatch library is affected by an additional high-severity flaw that enables attackers to disrupt application availability or circumvent security filters via malicious input strings.
Vulnerability Details
CVE-ID: CVE-2026-27904
Affected Software: minimatch
Affected Versions: See vendor advisory for specific affected versions
Vulnerability: Similar to other flaws in glob-matching utilities, this vulnerability likely stems from inefficient processing of complex patterns. An unauthenticated attacker could provide a malicious string that causes the library to consume excessive resources or fail to match patterns as expected.
Business Impact
The high CVSS score of 7.5 highlights the potential for this vulnerability to cause significant service disruptions. For enterprises relying on Node.js for customer-facing applications, an exploit could lead to service outages and financial loss. Furthermore, if minimatch is used for access control lists (ACLs), an attacker might bypass security boundaries to access restricted files.
Remediation Plan
Immediate Action: Update all instances of the minimatch dependency to the latest patched version immediately to mitigate the risk of exploitation.
Proactive Monitoring: Review application logs for failed requests or timeouts associated with file uploads or path-based queries.
Compensating Controls: Use rate-limiting on endpoints that accept user-defined search patterns or file paths to reduce the impact of potential resource exhaustion attacks.
Exploitation Status
Public Exploit Available: false
Analyst Notes: As of February 26, 2026, there is no public information indicating active exploitation of this vulnerability. Utility library flaws are often exploited silently in automated attacks, making proactive patching essential.
Analyst Recommendation
Given the high CVSS score and the widespread use of this library, administrators and developers must act swiftly. Ensure that all package-lock.json or yarn.lock files are updated to include the remediated version of minimatch to prevent the introduction of this vulnerability during automated builds.