CVE-2026-127100 Sssd: sssd: local denial of service through unchecked oauth2 json code type in pam responder

A flaw was found in SSSD's PAM responder on builds with the JSON PAM extension enabled. A local attacker can submit a crafted authentication request containing a non-string OAuth2 code value. Missing JSON type validation leads to a NULL pointer dereference, terminating the PAM responder and...