eslint-9.39.2.tgz: 3 vulnerabilities (highest severity is: 7.5)

[mend-for-github-com]

Vulnerable Library - eslint-9.39.2.tgz

Path to dependency file: /package.json

Path to vulnerable library: /package.json

Vulnerabilities

Vulnerability	Severity	CVSS	Dependency	Type	Fixed in (eslint version)	Remediation Possible**
CVE-2026-26996	High	7.5	minimatch-3.1.2.tgz	Transitive	10.0.0	✅
CVE-2025-69873	High	7.5	ajv-6.12.6.tgz	Transitive	N/A*	❌
CVE-2025-5889	Low	3.1	brace-expansion-1.1.11.tgz	Transitive	10.0.0	✅

*For some transitive vulnerabilities, there is no version of direct dependency with a fix. Check the "Details" section below to see if there is a version of transitive dependency where vulnerability is fixed.

**In some cases, Remediation PR cannot be created automatically for a vulnerability despite the availability of remediation

Details

CVE-2026-26996

Vulnerable Library - minimatch-3.1.2.tgz

a glob matcher in javascript

Library home page: https://registry.npmjs.org/minimatch/-/minimatch-3.1.2.tgz

Path to dependency file: /package.json

Path to vulnerable library: /package.json

Dependency Hierarchy:

• eslint-9.39.2.tgz (Root Library)
  • ❌ minimatch-3.1.2.tgz (Vulnerable Library)

Found in base branch: main

Vulnerability Details

minimatch is a minimal matching utility for converting glob expressions into JavaScript RegExp objects. Versions 10.2.0 and below are vulnerable to Regular Expression Denial of Service (ReDoS) when a glob pattern contains many consecutive * wildcards followed by a literal character that doesn't appear in the test string. Each * compiles to a separate [^/]*? regex group, and when the match fails, V8's regex engine backtracks exponentially across all possible splits. The time complexity is O(4^N) where N is the number of * characters. With N=15, a single minimatch() call takes ~2 seconds. With N=34, it hangs effectively forever. Any application that passes user-controlled strings to minimatch() as the pattern argument is vulnerable to DoS. This issue has been fixed in version 10.2.1.

Publish Date: 2026-02-20

URL: CVE-2026-26996

CVSS 3 Score Details (7.5)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: None
  • Integrity Impact: None
  • Availability Impact: High

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: GHSA-3ppc-4f35-3m26

Release Date: 2026-02-19

Fix Resolution (minimatch): 10.2.1

Direct dependency fix Resolution (eslint): 10.0.0

⛑️ Automatic Remediation will be attempted for this issue.

CVE-2025-69873

Vulnerable Library - ajv-6.12.6.tgz

Another JSON Schema Validator

Library home page: https://registry.npmjs.org/ajv/-/ajv-6.12.6.tgz

Path to dependency file: /package.json

Path to vulnerable library: /package.json

Dependency Hierarchy:

• eslint-9.39.2.tgz (Root Library)
  • ❌ ajv-6.12.6.tgz (Vulnerable Library)

Found in base branch: main

Vulnerability Details

ajv (Another JSON Schema Validator) through version 8.17.1 is vulnerable to Regular Expression Denial of Service (ReDoS) when the $data option is enabled. The pattern keyword accepts runtime data via JSON Pointer syntax ($data reference), which is passed directly to the JavaScript RegExp() constructor without validation. An attacker can inject a malicious regex pattern (e.g., "^(a|a)*$") combined with crafted input to cause catastrophic backtracking. A 31-character payload causes approximately 44 seconds of CPU blocking, with each additional character doubling execution time. This enables complete denial of service with a single HTTP request against any API using ajv with $data: true for dynamic schema validation.

Publish Date: 2026-02-11

URL: CVE-2025-69873

CVSS 3 Score Details (7.5)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: None
  • Integrity Impact: None
  • Availability Impact: High

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: GHSA-2g4f-4pwh-qvx6

Release Date: 2026-02-11

Fix Resolution: ajv - 8.18.0

CVE-2025-5889

Vulnerable Library - brace-expansion-1.1.11.tgz

Brace expansion as known from sh/bash

Library home page: https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz

Path to dependency file: /package.json

Path to vulnerable library: /package.json

Dependency Hierarchy:

• eslint-9.39.2.tgz (Root Library)
  • minimatch-3.1.2.tgz
    • ❌ brace-expansion-1.1.11.tgz (Vulnerable Library)

Found in base branch: main

Vulnerability Details

A vulnerability was found in juliangruber brace-expansion up to 1.1.11. It has been rated as problematic. Affected by this issue is the function expand of the file index.js. The manipulation leads to inefficient regular expression complexity. The attack may be launched remotely. The complexity of an attack is rather high. The exploitation is known to be difficult. The exploit has been disclosed to the public and may be used. The name of the patch is a5b98a4f30d7813266b221435e1eaaf25a1b0ac5. It is recommended to apply a patch to fix this issue.
Mend Note: The description of this vulnerability differs from MITRE.

Publish Date: 2025-06-09

URL: CVE-2025-5889

CVSS 3 Score Details (3.1)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: High
  • Privileges Required: Low
  • User Interaction: None
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: None
  • Integrity Impact: None
  • Availability Impact: Low

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: GHSA-v6h2-p8h4-qcjw

Release Date: 2025-06-09

Fix Resolution (brace-expansion): 1.1.12

Direct dependency fix Resolution (eslint): 10.0.0

⛑️ Automatic Remediation will be attempted for this issue.

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⛑️Automatic Remediation will be attempted for this issue.