CVE-2025-65945

auth0/node-jws improper HMAC signature verification vulnerability

Published Dec 4, 2025 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Description
auth0/node-jws is a JSON Web Signature implementation for Node.js. In versions 3.2.2 and earlier and version 4.0.0, auth0/node-jws has an improper signature verification vulnerability when using the HS256 algorithm under specific conditions. Applications are affected when they use the jws.createVerify() function for HMAC algorithms and use user-provided data from the JSON Web Signature protected header or payload in HMAC secret lookup routines, which can allow attackers to bypass signature verification. This issue has been patched in versions 3.2.3 and 4.0.1.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-869p-cjfg-cm3x auth0/node-jws Improperly Verifies HMAC Signature
History
Type Values Removed Values Added
CPEs cpe:2.3:a:auth0:node-jws:*:*:*:*:*:node.js:*:*
cpe:2.3:a:auth0:node-jws:4.0.0:*:*:*:*:node.js:*:*
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Auth0
Auth0 node-jws
Vendors & Products Auth0
Auth0 node-jws
Type Values Removed Values Added
Description auth0/node-jws is a JSON Web Signature implementation for Node.js. In versions 3.2.2 and earlier and version 4.0.0, auth0/node-jws has an improper signature verification vulnerability when using the HS256 algorithm under specific conditions. Applications are affected when they use the jws.createVerify() function for HMAC algorithms and use user-provided data from the JSON Web Signature protected header or payload in HMAC secret lookup routines, which can allow attackers to bypass signature verification. This issue has been patched in versions 3.2.3 and 4.0.1.
Title auth0/node-jws improper HMAC signature verification vulnerability
Weaknesses CWE-347
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Dec 5, 2025, 6:31 PM
Reserved
Nov 18, 2025, 4:14 PM
Status
Analyzed
Published
Dec 4, 2025, 7:16 PM
Modified
Oct 18, 2026, 3:10 PM
Severity
Important
Public date
Dec 4, 2025, 6:45 PM