Signal is active with 1 mentions in latest observed window
Recommended action window: Monitor and triage in normal cycle
NVD description
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.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
NONE
Momentum
NONE
🚨Critical - Authlib OpenID Discovery Cache Poisoning (CVE-2026-104056) Authlib caches OIDC discovery JSON (.well-known/openid-configuration) without validating issuer/origin binding. By poisoning the cached discovery response, an attacker can swap authorization/token/jwks_uri endpoints to attacker-controlled URLs, enabling auth redirect/token interception and account compromise. 👉Affected: Authlib <= 1.7.2