Authlib library contains a signature‑verification bypass vulnerability
48Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 9.8epss 0.3%
from disclosure to weapon2 days
Published on NVDSep 28
1st PoC+2d
exploitation probability
0.3%top 82% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
Authlib · Authlibpublic PoCs found — 1
githubgithub.com/uziii2208/CVE-2026-96760★ 0⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.