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TI-2026-03379 Aliases CVE-2026-3911GHSA-xh32-c9wx-phrp

Org.keycloak.services.resources.admin.userresource: keycloak: information disclosure of…

Priority LOW 14CWE-359Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-359.

Summary

A flaw was found in Keycloak. An authenticated user with the view-users role could exploit a vulnerability in the UserResource component. By accessing a specific administrative endpoint, this user could improperly retrieve user attributes that were configured to be hidden. This unauthorized information disclosure could expose sensitive user data.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00369 31st percentileScored 2026-11-07
Fix Fixed Red Hat: 2 advisories

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—26.4.11-1Patch availableCNA
Red HatRed Hat build of Keycloak 26.4—26.4-14Patch availableCNA
Red HatRed Hat build of Keycloak 26.4—26.4-14Patch availableCNA
Red HatRed Hat build of Keycloak 26.4.11——Not affectedCNA
—org.keycloak:keycloak-services (Maven)up to 26.5.5—No fix listedGHSA-xh32-c9wx-phrp
  • Red Hat build of Keycloak 26.4 VendorRed Hat Affected — Fixed in 26.4.11-1 Patch available CNA
  • Red Hat build of Keycloak 26.4 VendorRed Hat Affected — Fixed in 26.4-14 Patch available CNA
  • Red Hat build of Keycloak 26.4 VendorRed Hat Affected — Fixed in 26.4-14 Patch available CNA
  • Red Hat build of Keycloak 26.4.11 VendorRed Hat Affected — Fixed in — Not affected CNA
  • org.keycloak:keycloak-services (Maven) Vendor— Affected up to 26.5.5 Fixed in — No fix listed GHSA-xh32-c9wx-phrp

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:redhat:build_of_keycloak:-:*:*:*:text-only:*:*:*not specified by NVDVulnerableRed Hat
cpe:2.3:a:redhat:build_of_keycloak:26.4:*:*:*:*:*:*:*26.4VulnerableRed Hat
cpe:2.3:a:redhat:build_of_keycloak:26.4.11:*:*:*:*:*:*:*26.4.11VulnerableRed Hat
  • cpe:2.3:a:redhat:build_of_keycloak:-:*:*:*:text-only:*:*:* Versions not specified by NVD Vulnerable ·Red Hat
  • cpe:2.3:a:redhat:build_of_keycloak:26.4:*:*:*:*:*:*:* Versions 26.4 Vulnerable ·Red Hat
  • cpe:2.3:a:redhat:build_of_keycloak:26.4.11:*:*:*:*:*:*:* Versions 26.4.11 Vulnerable ·Red Hat

Remediation

Red Hat 2 advisories

  • RHSA-2026:6478 Released 2026-04-02 · Red Hat rating Important
    Red Hat build of Keycloak 26.4.11 Images Update
    • Red Hat build of Keycloak 26.4 rhbk/keycloak-operator-bundle, rhbk/keycloak-rhel9, rhbk/keycloak-rhel9-operator
  • RHSA-2026:6477 Released 2026-04-02 · Red Hat rating Important
    Red Hat build of Keycloak 26.4.11 Update
    • Red Hat build of Keycloak 26.4.11

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat build of Keycloak 26.4Fixed RHSA-2026:6478
Red Hat build of Keycloak 26.4.11Fixed RHSA-2026:6477

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-3911
  2. 2026-10-03 Alias added: GHSA-xh32-c9wx-phrp

References

Advisory 4

Other 5

  • TI-2026-02223 Keycloak: keycloak: unauthorized authentication via disabled saml identity provider CVSS 3.1HIGH 8.1
  • TI-2024-01049 Keycloak: path transversal in redirection validation CVSS 3.1HIGH 8.1
  • TI-2026-13740 Keycloak-services: keycloak-services: saml idp-initiated broker login bypasses link-only restriction CVSS 3.1CRITICAL 9.8
  • TI-2026-13741 Keycloak-services: keycloak-services: saml broker metadata import disables response signature validation CVSS 3.1CRITICAL 9.1
  • TI-2026-13106 Keycloak-services: keycloak-services: dcr protocol mapper type-swap policy bypass allows privilege escalation CVSS 3.1HIGH 8.8
  • TI-2026-02631 Authentication bypass in Red Hat build of Keycloak 26.2 CVSS 3.1HIGH 8.8
See all 110 →

Sources

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