CVE-2026-103884
MEDIUM
NVD
CVSS Score
6.5
Severity
MEDIUM
Published
Oct 01, 2026
Vendor
unknown
Description
A flaw was found in the X.509 client certificate authenticator of Keycloak. When CRL Distribution Point checking is enabled, the server fails to properly validate the file paths provided in a client certificate. An attacker can provide a specially crafted certificate that causes the server to attempt to read sensitive files from the local system or exhaust memory by loading extremely large files, potentially leading to information disclosure or a system crash.