[NVD] CVE-2026-18214 (MEDIUM 6.8) — Keycloak allows users to log in using Google accounts and can be configured to only allow users from specific Google Workspace domains. A flaw was found where the token exchange feature, which allows swapping a Google token for a Keycloak token, does not check these domain restri

CVE-2026-18214 CVSS: 6.8 MEDIUM Published: 2026-07-31T08:16:27.753

Keycloak allows users to log in using Google accounts and can be configured to only allow users from specific Google Workspace domains. A flaw was found where the token exchange feature, which allows swapping a Google token for a Keycloak token, does not check these domain restrictions. This means an attacker with a valid Google a