Hi,

The following vulnerability was published for python-authlib.

CVE-2026-96760[0]:
| 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.


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2026-96760
https://www.cve.org/CVERecord?id=CVE-2026-96760
[1] https://kb.cert.org/vuls/id/762428
[2] https://github.com/authlib/authlib/issues/940

Please adjust the affected versions in the BTS as needed.