auth0/node-jws Improperly Verifies HMAC Signature
Overview
An improper signature verification vulnerability exists when using auth0/node-jws with the HS256 algorithm under specific conditions.
Am I Affected?
You are affected by this vulnerability if you meet all of the following preconditions:
- Application uses the auth0/node-jws implementation of JSON Web Signatures, versions <=3.2.2 || 4.0.0
- Application uses the jws.createVerify() function for HMAC algorithms
- Application uses user-provided data from the JSON Web Signature Protected Header or Payload in the HMAC secret lookup routines
You are NOT affected by this vulnerability if you meet any of the following preconditions:
- Application uses the jws.verify() interface (note:
auth0/node-jsonwebtokenusers fall into this category and are therefore NOT affected by this vulnerability) - Application uses only asymmetric algorithms (e.g. RS256)
- Application doesn’t use user-provided data from the JSON Web Signature Protected Header or Payload in the HMAC secret lookup routines
Fix
Upgrade auth0/node-jws version to version 3.2.3 or 4.0.1
Acknowledgement
Okta would like to thank Félix Charette for discovering this vulnerability.
Software afectado
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| Plataforma | Paquete | Versiones vulnerables | Corregida en |
|---|---|---|---|
| Paquete de npm | jws | < 3.2.3, >= 4.0.0, < 4.0.1 | 3.2.3, 4.0.1 |
Referencias
- https://github.com/auth0/node-jws/security/advisories/GHSA-869p-cjfg-cm3x
- https://nvd.nist.gov/vuln/detail/CVE-2025-65945
- https://github.com/auth0/node-jws/commit/34c45b2c04434f925b638de6a061de9339c0ea2e
- https://github.com/auth0/node-jws/commit/4f6e73f24df42f07d632dec6431ade8eda8d11a6
- https://github.com/auth0/node-jws
- https://github.com/auth0/node-jws/releases/tag/v3.2.3
- https://github.com/auth0/node-jws/releases/tag/v4.0.1
- Vector CVSS
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N- Debilidad (CWE)
CWE-347- Plataforma
- npm
- Paquete
jws- Publicada
- 04.12.2025
- Actualizado
- 11.10.2026 10:22
Fuentes y licencias
OSV / GitHub Advisory Database - GHSA-869p-cjfg-cm3x - CC BY 4.0
Historial de vulnerabilidades: jws
Todas las vulnerabilidades publicadas de este paquete (Paquete de npm), de la más reciente a la más antigua. Muestra si es un fallo aislado o un paquete que hay que vigilar.
- Entradas en total
- 2
- Primera → última
- 09.2020 12.2025
- Sin corrección
- 0
- Explotada en ataques
- 0
Distribución por gravedad
- Alta 2
Divulgaciones por año
- 2020: 1
- 2021: 0
- 2022: 0
- 2023: 0
- 2024: 0
- 2025: 1
- 2026: 0
-
auth0/node-jws Improperly Verifies HMAC Signature esta entrada
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