Red Hat CVE-2025-11537
MEDIUM
GHSA-gv3v-2cpp-3pmq
Severity by source
AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
Primary rating from NVD.
CVSS VectorNVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
Lifecycle Timeline
3Blast Radius
ecosystem impact- 22 maven packages depend on org.keycloak:keycloak-quarkus-server (3 direct, 19 indirect)
Ecosystem-wide dependent count for version 26.5.6.
DescriptionCVE.org
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.
AnalysisAI
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. [CVSS 5.0 MEDIUM]
Technical ContextAI
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.
Affected ProductsAI
Keycloak
RemediationAI
Monitor vendor advisories for a patch.
Same weakness CWE-117 – Improper Output Neutralization for Logs
View allSame technique Information Disclosure
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External POC / Exploit Code
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