CVE-2025-11537

A flaw was found in Keycloak. When the logging format is configured to a verbose, user-supplied pattern (such as the pre-defined 'long' pattern), sensitive headers including Authorization and Cookie are disclosed to the logs in cleartext. An attacker with read access to the log files can extract these credentials (e.g., bearer tokens, session cookies) and use them to impersonate users, leading to a full account compromise.
Configurations

No configuration.

History

10 Feb 2026, 11:16

Type Values Removed Values Added
New CVE

Information

Published : 2026-02-10 11:16

Updated : 2026-02-10 15:22


NVD link : CVE-2025-11537

Mitre link : CVE-2025-11537

CVE.ORG link : CVE-2025-11537


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Products Affected

No product.

CWE
CWE-117

Improper Output Neutralization for Logs