CVE-2026-96760

critical · 9.8

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.

9.8

CVSS

0.1%

EPSS (exploit prob.)

2nd

EPSS percentile

2026-09-28

Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-20CWE-347CWE-358CWE-670

References

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

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-96760