CVE-2026-96760Authlib library contains a signature‑verification bypass vulnerability

Descripción

Authlib (v1.8.0 and below) contains a signature verification bypass vulnerability. The JsonWebSignature.deserialize_json() method accepts a JSON Serialization JWS object and returns the payload as successfully verified without checking for a signature and without requiring a cryptographic key.

Datos: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Se publican tal como los indican las fuentes, en inglés.

Productos y versiones afectados

Referencias y parches

• https://github.com/authlib/authlib
• https://kb.cert.org/vuls/id/762428
• https://www.kb.cert.org/vuls/id/762428