CVE-2026-96760
Authlib (v1.7.2 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.
- Published Sep 28, 2026
- CVSS 9.8 critical
- 0.3% chance of exploitation in the next 30 days (EPSS)
Affected software
In the news
- ⚡ Weekly Recap: NetScaler and FortiMail 0-Days, AI Coding Leaks, Spectre v2 and Ransomware Arrests The Hacker News ·
- Authlib library contains a signature‑verification bypass vulnerability CERT Coordination Center ·