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  4. CVE 2026 17495 moment vulnerable to path traversal via crafted
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Back to active CVEs
Medium · CVSS 5.9CVE-2026-17495GHSA-4P3W-J4W9-5JQW

moment vulnerable to Path Traversal via crafted non-string locale nameCVE-2026-17495

Answer in brief

CVE-2026-17495 records a Medium severity (CVSS 5.9) vulnerability in moment vulnerable to Path Traversal via crafted non-string locale name. The current sources do not mark it as known exploited. The current feed maps moment/moment (generic), moment (npm). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 15, 2026Updated Sep 29, 2026Source checked Oct 30, 2026First seen by HOL Sep 15, 2026Material review Sep 29, 2026
Upstream Advisory

Record context

Vulnerability class
Path Traversal
EPSS
Not reported
CWE IDs
CWE-27
Source
CVE List V5
Source checked
Oct 30, 2026
References
7 linked sources
Open source record

Key facts

Risk
Medium · CVSS 5.9
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 5.9. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps moment/moment (generic), moment (npm). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
moment/momentgeneric>=2.29.2 <2.31.02.31.0
momentnpm>=2.29.2,<2.31.02.31.0

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for moment/moment, moment.
  2. 2Review the reported fix. Update moment/moment to 2.31.0; moment to 2.31.0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Sep 15, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Sep 29, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Sep 15, 2026

Sources and claim methodology

  • Source referencecna.openjsf.org
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • NVD vulnerability recordnvd.nist.gov
Upstream source description

moment is a JavaScript date library for parsing, validating, manipulating, and formatting dates. In versions 2.29.2 through 2.30.1, a specially crafted non-string object passed to moment.locale() can bypass the locale-name path-traversal guard. The guard assumes the input is a string, so an object whose match() method satisfies the check while its toString() returns a traversal path reaches an internal require() call with attacker-controlled path segments. This is an incomplete fix for CVE-2022-24785 and primarily affects npm (server-side) users that pass user-provided input directly to moment.locale(). The issue is fixed in moment 2.31.0, and users should upgrade to 2.31.0 or later. As a workaround, validate that any user-supplied input is a string before passing it to moment.locale().

Quoted source text, attributed separately from HOL analysis.