CVE-2026-103884 — Keycloak-services: keycloak-services: path traversal in x.509 crl distribution point allows arbitrary local file read
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…
Published: 2026-10-01 · CVSS: 6.5 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7