CVE-2026-88770

Keycloak 's Device Authorization Grant flow contains a flaw where the token redemption process does not verify whether a user account is currently locked due to brute-force protection . An attacker holding an active session for a locked account can complete the device login flow and obtain new se...

CVE-2026-88770 Keycloak-services: keycloak-services: device authorization grant issues tokens to brute-force-locked accounts

A flaw was found in the Device Authorization Grant flow of Keycloak, an identity and access management solution. The issue occurs because the token redemption process fails to check if a user account is currently locked due to brute-force protection. If an attacker has an active session for a...