VDB
CVE-2026-96760
CVE-2026-96760
PUBLISHED
CVSS 9.8 CRITICAL
Reported by certcc · Published September 28, 2026
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.
Risk Scores
CVSS 3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Authlib | Authlib | 1.7.2 |
| Authlib | Authlib | 1.7.2, 1.7.2 |
Timeline
- Sep 28, 2026 Coalition ESS Score
- Sep 28, 2026 CVE Published
- Sep 29, 2026 EPSS Score
- Sep 30, 2026 Security Advisory
- Oct 1, 2026 CVE Updated
- Oct 2, 2026 EPSS Score