Vulnerability Description
A flaw was found in the reset-credentials flow of the keycloak-services component, which is the core engine for identity and access management in Red Hat Build of Keycloak. The issue allows an unauthenticated attacker to force the password reset process for any user without needing to click the required email verification link. This can result in the attacker gaining full control over target user accounts by directly setting new credentials.
CVSS Score
CRITICAL
Related Weaknesses (CWE)
References
- https://access.redhat.com/errata/RHSA-2026:56519
- https://access.redhat.com/errata/RHSA-2026:56520
- https://access.redhat.com/errata/RHSA-2026:56523
- https://access.redhat.com/errata/RHSA-2026:56524
- https://access.redhat.com/security/cve/CVE-2026-18963
- https://bugzilla.redhat.com/show_bug.cgi?id=2511595
- https://cert-portal.siemens.com/productcert/html/ssa-503852.html
FAQ
What is CVE-2026-18963?
CVE-2026-18963 is a vulnerability with a CVSS score of 9.1 (CRITICAL). A flaw was found in the reset-credentials flow of the keycloak-services component, which is the core engine for identity and access management in Red Hat Build of Keycloak. The issue allows an unauthe...
How severe is CVE-2026-18963?
CVE-2026-18963 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-18963?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.