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TI-2025-10572 Aliases CVE-2025-11537GHSA-gv3v-2cpp-3pmq

Keycloak-services: sensitive headers shown in the http access logs

Priority LOW 22CWE-117Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · None · None
Fix status
Partial Red Hat: 1 fixed, 1 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Red Hat.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00171 6th percentileScored 2026-11-07
Fix Partial org.keycloak:keycloak-quarkus-server (Maven): 26.5.6Red Hat: 1 fixed, 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Red HatRed Hat build of Keycloak 26.4.2——Not affectedCNA
Red HatRed Hat Build of Keycloak——No fix listedCNA
—org.keycloak:keycloak-quarkus-server (Maven)before 26.5.626.5.6Patch availableGHSA-gv3v-2cpp-3pmq
  • Red Hat build of Keycloak 26.4.2 VendorRed Hat Affected — Fixed in — Not affected CNA
  • Red Hat Build of Keycloak VendorRed Hat Affected — Fixed in — No fix listed CNA
  • org.keycloak:keycloak-quarkus-server (Maven) Vendor— Affected before 26.5.6 Fixed in 26.5.6 Patch available GHSA-gv3v-2cpp-3pmq

CPE names CNA · 2

CPEVersionsRoleVendor
cpe:/a:redhat:build_keycloak:26.4::el926.4—Red Hat
cpe:/a:redhat:build_keycloak:——Red Hat
  • cpe:/a:redhat:build_keycloak:26.4::el9 Versions 26.4 — ·Red Hat
  • cpe:/a:redhat:build_keycloak: Versions — — ·Red Hat

Remediation

  • Fix · GHSA-gv3v-2cpp-3pmq org.keycloak:keycloak-quarkus-server (Maven) Fixed in 26.5.6 Advisory →

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Build of KeycloakAffectedNo fix yet
Red Hat build of Keycloak 26.4.2Fixed—

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-11537
  2. 2026-10-03 Alias added: GHSA-gv3v-2cpp-3pmq
  3. 2026-10-30 Fix available: Red Hat build of Keycloak 26.4.2 · Red Hat
  4. 2026-10-30 Affected versions changed · CNA
  5. 2026-10-30 2 new references · CNA
  6. 2026-10-30 2 new references · GHSA-gv3v-2cpp-3pmq

References

Advisory 3

Other 7

  • TI-2019-15875 Protection mechanism failure in Jenkins Pipeline: Groovy Plugin KEVCVSS 3.1CRITICAL 9.9
  • TI-2019-15874 Protection mechanism failure in Jenkins Script Security Plugin KEVCVSS 3.1CRITICAL 9.9
  • TI-2019-08259 Underflow in PHP-FPM can lead to RCE KEVCVSS 3.1CRITICAL 9.8
  • TI-2019-05363 Code injection in Elastic Kibana KEVCVSS 3.1CRITICAL 10.0
  • TI-2019-03949 Out-of-bounds write in ESXi and Horizon DaaS KEVCVSS 3.1CRITICAL 9.8
  • TI-2018-16080 A code execution vulnerability exists in the Stapler web framework used by Jenkins 2.153… KEVCVSS 3.1CRITICAL 9.8
See all 7413 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences