MEDIUM 4.0 NVD
CVE-2026-105301
A flaw was found in the X.509 client-certificate authenticator of Keycloak, a solution for identity and access management. The issue occurs when the server is c
A flaw was found in the X.509 client-certificate authenticator of Keycloak, a solution for identity and access management. The issue occurs when the server is configured to check certificate revocation using CRL Distribution Points or OCSP. An attacker can provide a specially crafted certificate that points to a malicious server, causing Keycloak to make unauthorized outbound requests to internal or external endpoints before the certificate is fully validated. This can lead to a blind server-side request forgery (SSRF) attack.
References
- https://access.redhat.com/security/cve/CVE-2026-105301
- https://bugzilla.redhat.com/show_bug.cgi?id=2545797
This medium severity vulnerability with a CVSS score of 4.0 was published on 2026-10-05 via NVD.
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