MEDIUM 6.5 NVD

CVE-2026-103884

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 valida

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.

References

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

Published: 2026-10-01 · Source: NVD · Feed updated: 2026-10-01

This medium severity vulnerability with a CVSS score of 6.5 was published on 2026-10-01 via NVD.

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