CVE-2026-104056

EUVD-2026-91003
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
certccCNA
UNKNOWN
---
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
authlibauthlib
1.7.2
CNA
References
https://uziii2208.github.io/post/cve-2026-104056/