CVE-2026-104056

Summary

Authlib version 1.7.2 and below contains a vulnerability where discovery JSON metadata is cached without validation or issuer-origin binding. This allows a poisoned discovery response to replace all endpoint values with attacker-controlled values rather than endpoint URLs that share the origin of the configured server metadata URL.

Affected Software

VendorProductVersion RangeStatus
AuthlibAuthlib1.7.2affected

Weaknesses

  • CWE-345 Insufficient Verification of Data Authenticity
  • CWE-346 Origin Validation Error
  • CWE-829 Inclusion of Functionality from Untrusted Control Sphere

References