Red Hat and the Keycloak project have released patches to address a critical security flaw in the open-source identity and access management server. The vulnerability, tracked as CVE-2026-18963, has a CVSS score of 9.1 and could allow an unauthenticated remote attacker to force a password reset and take over any user account. Patches have been released to mitigate the issue.

What should defenders do?

Apply the patches released by Red Hat and the Keycloak project immediately. Administrators should update their Keycloak installations to the latest patched versions to prevent exploitation. Review access controls and monitor for unusual password reset activity.

criticalVulnerability

Critical Keycloak Password Reset Flaw Could Let Unauthenticated Attackers Take Over Any Account

CVE-2026-18963 Rated 9.1 CVSS; Patches Released by Red Hat and Keycloak Project

CyberIntel DeskPublished about 1 month agoUpdated less than a minute ago1 min read

Critical Keycloak Password Reset Flaw Could Let Unauthenticated Attackers Take Over Any Account

Key Takeaways

Critical vulnerability CVE-2026-18963 affects Keycloak identity and access management server.
CVSS score of 9.1 indicates severe risk; unauthenticated remote attackers can exploit the flaw.
Attack vector involves forcing a password reset to take over any user account.
Patches have been released by Red Hat and the Keycloak project.

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