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Upgrade grunt-contrib-less to 2.1.0 and semver to 5.7.2 to fix CVEs#942

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Upgrade grunt-contrib-less to 2.1.0 and semver to 5.7.2 to fix CVEs#942
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copilot/fix-vulnerabilities-grunt-contrib-less

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Copilot AI commented Mar 17, 2026 •
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Addresses two known vulnerabilities in transitive dependencies of grunt-contrib-less@2.0.0:

CVE Severity Vulnerable Dep Fixed Version
CVE-2021-43138 High (7.8) async@2.6.3 async@3.2.6 via grunt-contrib-less@2.1.0
CVE-2022-25883 Medium (5.3) semver@5.7.1 semver@5.7.2

Changes

  • package.json: grunt-contrib-less ^2.0.0 → ^2.1.0
  • package-lock.json: Updated locked versions for grunt-contrib-less (2.1.0), async (3.2.6), chalk (4.1.2), semver (5.7.2), and their transitive deps
Original prompt

This section details on the original issue you should resolve

<issue_title>grunt-contrib-less-2.0.0.tgz: 2 vulnerabilities (highest severity is: 7.8) reachable</issue_title>
<issue_description>

Vulnerable Library - grunt-contrib-less-2.0.0.tgz

Path to dependency file: /package.json

Path to vulnerable library: /package.json

Found in HEAD commit: 7c898c0839317ea7989d15935972aa4dc520b907

Vulnerabilities

Vulnerability Severity CVSS Exploit Maturity EPSS Dependency Type Fixed in (grunt-contrib-less version) Fix PR available Reachability
CVE-2022-25883 Medium 5.3 Proof of concept 0.6% semver-5.7.1.tgz Transitive N/A* ❌

Reachable
CVE-2021-43138 High 7.8 Not Defined 0.70000005% async-2.6.3.tgz Transitive 2.1.0 ✅

Unreachable

*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-2022-25883

Vulnerable Library - semver-5.7.1.tgz

The semantic version parser used by npm.

Library home page: https://registry.npmjs.org/semver/-/semver-5.7.1.tgz

Path to dependency file: /package.json

Path to vulnerable library: /package.json

Dependency Hierarchy:

  • grunt-contrib-less-2.0.0.tgz (Root Library)
    • less-3.12.2.tgz
      • make-dir-2.1.0.tgz
        • ❌ semver-5.7.1.tgz (Vulnerable Library)

Found in HEAD commit: 7c898c0839317ea7989d15935972aa4dc520b907

Found in base branches: develop, master

Reachability Analysis

This vulnerability is potentially reachable

semver-5.7.1/semver.js (Application)
  -> jsonwebtoken-8.5.1/lib/psSupported.js (Extension)
   -> jsonwebtoken-8.5.1/sign.js (Extension)
    -> jsonwebtoken-8.5.1/index.js (Extension)
     -> opentok-2.10.0/lib/generateJwt.js (Extension)
      -> opentok-2.10.0/lib/opentok.js (Extension)
       -> ❌ opentok-rtc-5.0.1/test/mocks/mock_opentok.js (Vulnerable Component)

Vulnerability Details

Versions of the package semver before 7.5.2 are vulnerable to Regular Expression Denial of Service (ReDoS) via the function new Range, when untrusted user data is provided as a range.
Mend Note: The description of this vulnerability differs from MITRE.

Publish Date: 2023-06-21

URL: CVE-2022-25883

Threat Assessment

Exploit Maturity: Proof of concept

EPSS: 0.6%

CVSS 3 Score Details (5.3)

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: Low

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: GHSA-c2qf-rxjj-qqgw

Release Date: 2023-06-21

Fix Resolution: semver - 5.7.2,6.3.1,7.5.2;org.webjars.npm:semver:7.5.2

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@VZaphod
Upgrade grunt-contrib-less to 2.1.0 and semver to 5.7.2 to fix CVE-20…
b85e4bf 
…21-43138 and CVE-2022-25883

Co-authored-by: VZaphod <210490533+VZaphod@users.noreply.github.com>
Copilot AI changed the title [WIP] Fix vulnerabilities in grunt-contrib-less 2.0.0 Upgrade grunt-contrib-less to 2.1.0 and semver to 5.7.2 to fix CVEs Mar 17, 2026
Copilot AI requested a review from VZaphod March 17, 2026 22:07
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grunt-contrib-less-2.0.0.tgz: 2 vulnerabilities (highest severity is: 7.8) unreachable

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