CVE-2026-103884 — Keycloak-services: keycloak-services: path traversal in x.509 crl distribution point allows arbitrary local file read

CVE-2026-103884

Keycloak-services: keycloak-services: path traversal in x.509 crl distribution point allows arbitrary local file read PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
Red Hat / Red Hat Build of Keycloak	affected
Red Hat / Red Hat Build of Keycloak	affected
Red Hat / Red Hat Single Sign-On 7	unknown

CWE

CWE-22

References

https://access.redhat.com/security/cve/CVE-2026-103884

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.