CVE-2026-87011

Open WebUI , a self-hosted AI platform, contains a denial-of-service vulnerability in the unauthenticated POST /oauth/backchannel-logout handler (backend/open_webui/utils/oauth.py). From version 0.9.0 through 0.11.1 , the handler fetched the OIDC discovery document and signing keys before validat...

GHSA-855V-HQ7W-JMJW Open WebUI: Realtime endpoints accept Redis-revoked JWTs after signout/backchannel logout

Summary With Redis configured, Open WebUI supports JWT revocation: POST /api/v1/auths/signout per-token jti and OIDC back-channel logout per-user revokedat record revocations in Redis, and HTTP auth getcurrentuser rejects revoked tokens with 401. The realtime authentication surfaces do not perfor...

Data Sharing Framework has an Inverted Time Comparison in OIDC JWKS and Token Cache

Affected Components - DSF FHIR Server with enabled bearer-token authentication or back-channel logout. - DSF BPE Server with enabled bearer-token authentication or back-channel logout. - DSF BPE Server API v2 process plugins using FHIR client connections with configured OIDC authentication. Summa...