CVEvulnerability

CVE-2026-96760

9.8 CRITICAL Published 2026-09-28 Modified 2026-10-01 Official page ↗
Status
Awaiting Analysis
Published
2026-09-28
Last modified
2026-10-01
Assigner
[email protected]
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-20, CWE-347, CWE-358, CWE-670

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.

Related

Weakness · CWE (4)

  • CWE-20 Improper Input Validation weakness
  • CWE-347 Improper Verification of Cryptographic Signature weakness
  • CWE-358 Improperly Implemented Security Check for Standard weakness
  • CWE-670 Always-Incorrect Control Flow Implementation weakness

References