CVE-2026-87004 Tugtainer: OIDC id_token claims accepted without signature/audience/expiry verification

Tugtainer is a self-hosted app for automating updates of Docker containers. Prior to version 1.31.3, when the OIDC login flow completes, backend/modules/auth/providers/authoidcprovider.py decodes the idtoken returned by the identity provider's token endpoint using jose.jwt.getunverifiedclaims...