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CVE-2025-65945GHSA-869P-CJFG-CM3X

auth0/node-jws improper HMAC signature verification vulnerability

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 3.2.3, 4.0.1
1 proof of concept on GitHub
  • Exploitation: none
  • Automatable: yes
  • Technical impact: partial

Summary

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.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: yes · Technical impact: partial

  3. Record last updated

Affected versions

  • auth0 node-jws

    fixed in 3.2.3; From 4.0.0 · through 4.0.1

  • jwsnpm

    fixed in 3.2.3

  • jwsnpm

    From 4.0.0 · fixed in 4.0.1

References 3

GitHub · auth0/node-jws

GitHub · jedisct1/CVE-2025-65945-poc