Vulnerability in Red Hat Build Of Keycloak
CVE-2026-18963
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 v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
Affected products
Weakness classification (CWE)
References
- secalert@redhat.com (x_refsource_REDHAT, vdb-entry)
- secalert@redhat.com (x_refsource_REDHAT, issue-tracking)
Frequently asked questions
- What is CVE-2026-18963?
- CVE-2026-18963 is a critical-severity vulnerability in Red Hat Build Of Keycloak, classified under Weak Password Recovery Mechanism for Forgotten Password. CVSS score: 9.1/10. Published 2026-08-18.
- How severe is CVE-2026-18963?
- Critical severity. CVSS v3 base score is 9.1 out of 10.