CVE-2026-17495

mediumpriority · track · 0EPSS 0.005 · 44 %ileFRUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
0.52% (44th) EPSS
CVSS 5.9 · medium
Is it mine?
1 products
Check your exposure
Who says so?
2 sources
osv · certfr

EPSS · scored 2026-10-28

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().

01

cvss

Technical severity, 0–10. One row per scoring source.

5.9
010

base score 0–10 · higher = more severe · hover a vector to decode

v3.15.9mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:Nsecondaryexploitability 2.2 · impact 3.6
v3.15.9mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:Nsecondary · OSV
v3.15.4mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)
02

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-27USCWE-27US
04

affected products (1)

Products and version ranges known to be affected.

05

advisories (2)

Vendor and ecosystem advisories describing this.

  • GHSA-4p3w-j4w9-5jqwmoment vulnerable to Path Traversal via crafted non-string locale name2026-09-29ghsa · osvUS

    ### Impact moment before 2.31.0 is vulnerable to path traversal in `moment.locale()`. When an application passes a non-string, attacker-influenced value to `moment.locale()`, a specially crafted object can bypass the locale name validation and cause moment to load a file from an attacker-controlled path. This is a further bypass of the validation added in 2.29.2 for [CVE-2022-24785](https://github.com/moment/moment/security/advisories/GHSA-8hfj-j24r-96c4). This affects server-side (npm) users only. Plain string input is not affected: the existing validation correctly rejects strings that contain path separators. ### Patches This issue is patched in moment 2.31.0. ### Workarounds Validate that any user-supplied input is a string before passing it to `moment.locale()`.

  • CERTFR-2026-AVI-1378Multiples vulnérabilités dans les produits IBMFrançais2026-10-23vendor · certfrFR
06

sources

Which sources assert this record, and when.

osvcertfrNVDCVE.orgMITRE
published 2026-09-15modified 2026-09-16
07

references (2) nvd

External citations — patches, advisories, analysis.

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