OIDC Authentication Vulnerability in Looker by Google Cloud

CVE-2025-12414

What is CVE-2025-12414?

A vulnerability has been identified in Looker that allows attackers to take over user accounts in environments configured with OIDC authentication. This issue arises from improper email address string normalization, leading to potential security breaches in both Looker-hosted and self-hosted instances. While Looker-hosted environments have received necessary mitigations, self-hosted deployments must be promptly updated to defend against this risk. Users are urged to upgrade to the patched versions to ensure the security of their accounts. For more details and downloads, please visit the Looker download page.

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