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.
References
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
JSON object : View
Products Affected
No product.
CWE
CWE-117
Improper Output Neutralization for Logs
