VULNERABILITY INTELLIGENCE
CVE-2025-11537
CVSS score5 MEDIUM
EPSS probability0.17%
CISA KEVNot currently listed
Published2026-02-10
Last modified2026-10-30
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
Description
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.
Weakness classification
- secalert@redhat.com: CWE-117