What is GHSA-6m87-8wg6-hh8w?

GHSA-6m87-8wg6-hh8w is a security advisory published by GitHub Security Advisories with Critical severity. Authlib (v1.7.2 and below) contains a signature verification bypass vulnerability. The...

Which CVE IDs does GHSA-6m87-8wg6-hh8w cover?

GHSA-6m87-8wg6-hh8w covers the following CVE IDs: CVE-2026-96760. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-6m87-8wg6-hh8w?

GHSA-6m87-8wg6-hh8w has a CVSS v3 base score of 9.8, published by GitHub Security Advisories.

GHSA-6m87-8wg6-hh8wCriticalCVSS 9.8

Authlib (v1.7.2 and below) contains a signature verification bypass vulnerability. The...

Vendor

GitHub Security Advisories

Published

September 28, 2026

Last Modified

October 1, 2026

🔗 CVE IDs covered (1)

CVE-2026-96760 →

📋 Description

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.

🔗 References (5)

https://nvd.nist.gov/vuln/detail/CVE-2026-96760
https://github.com/authlib/authlib
https://kb.cert.org/vuls/id/762428
https://www.kb.cert.org/vuls/id/762428
https://github.com/advisories/GHSA-6m87-8wg6-hh8w