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

The Hacker News
CVEVulnerabilityCriticalRed Hat

Overview

Red Hat and the Keycloak project have issued important patches to fix a severe security vulnerability in Keycloak, an open-source identity and access management server. This flaw, identified as CVE-2026-18963, allows unauthenticated attackers to reset passwords and potentially take over any user account without needing prior access. Rated 9.1 on the CVSS scale, this vulnerability poses a significant risk to organizations using Keycloak for managing user identities and access. Users and administrators are strongly advised to apply the patches immediately to protect their systems and prevent unauthorized account access.

Key Takeaways

  • Affected Systems: Keycloak identity and access management server (specific versions not detailed)
  • Action Required: Patches have been released by Red Hat and the Keycloak project to address this vulnerability.
  • Timeline: Newly disclosed

Original Article Summary

Red Hat and the Keycloak project have released patches to address a critical security flaw in the open-source identity and access management server that could allow an unauthenticated remote attacker to take over any user account by forcing a password reset. The vulnerability, assigned the CVE identifier CVE-2026-18963, is rated 9.1 on the CVSS scoring system by Red Hat, which acts as

Impact

Keycloak identity and access management server (specific versions not detailed)

Exploitation Status

No active exploitation has been reported at this time. However, organizations should still apply patches promptly as proof-of-concept code may exist.

Timeline

Newly disclosed

Remediation

Patches have been released by Red Hat and the Keycloak project to address this vulnerability. Users should ensure they are running the latest version of Keycloak and apply all available updates as soon as possible.

Additional Information

This threat intelligence is aggregated from trusted cybersecurity sources. For the most up-to-date information, technical details, and official vendor guidance, please refer to the original article linked below.

Related Topics: This incident relates to CVE, Vulnerability, Critical, and 1 more.

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