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CVE-2025-65945

auth0/node-jws improper HMAC signature verification vulnerability

Published: Dec 4, 2025Updated: Jul 24, 2026 Sources: CVE List NVD GHSACWE-347
7.5HIGH
NVD MITRE
EPSS Score
0.2%
Top 87.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:NAvailability
None
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Weaknesses

CWE-347

Affected Products

auth0
commercialaka login by auth0, nextjs-auth0, auth0.js
node-jwsSaaS
Security Products / identity-access-mgmt
npm
package-ecosystem
jws
OSS Libraries

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Collection
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References

https://github.com/auth0/node-jws/security/advisories/GHSA-869p-cjfg-cm3x
github.com
https://github.com/auth0/node-jws/commit/34c45b2c04434f925b638de6a061de9339c0ea2e
github.com
https://nvd.nist.gov/vuln/detail/CVE-2025-65945
nvd.nist.gov
and 4 more references View all →

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