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TI-2026-12038 Aliases CVE-2026-14209GHSA-xmfr-m52w-m2hx

Keycloak-admin-ui: keycloak-admin-ui:admin ui extension brute-force-user endpoint bypasses fgapv2 user view restrictions

Priority LOW 20CWE-639Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
Low · None · None
Fix status
Partial Red Hat: 4 fixed, 1 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-639.

Summary

A vulnerability was discovered in Keycloak's Admin UI extension that allows certain administrative users to bypass security restrictions. When Fine-Grained Admin Permissions (FGAPv2) are enabled, an administrator who should only be able to search for users (but not view their full details) can use a specific "brute-force-user" endpoint to access a user's full profile. This includes sensitive information and security metadata. The issue occurs because the system fails to check if the administrator has the required "view" permission for that specific user when using this particular search path.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00386 32nd percentileScored 2026-11-07
Fix Partial Red Hat: 4 advisoriesRed Hat: 4 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—26.4.14-1Patch availableCNA
Red HatRed Hat build of Keycloak 26.4—26.4-22Patch availableCNA
Red HatRed Hat build of Keycloak 26.4—26.4-22Patch availableCNA
Red HatRed Hat build of Keycloak 26.4.14——Not affectedCNA
Red HatRed Hat build of Keycloak 26.4.14——Not affectedCNA
Red HatRed Hat build of Keycloak 26.6—26.6.5-1Patch availableCNA
Red HatRed Hat build of Keycloak 26.6—26.6-11Patch availableCNA
Red HatRed Hat build of Keycloak 26.6—26.6-11Patch availableCNA
Red HatRed Hat build of Keycloak 26.6.5——Not affectedCNA
Red HatRed Hat build of Keycloak 26.6.5——Not affectedCNA
Red HatRed Hat build of Keycloak 26.6.5——Not affectedCNA
Red HatRed Hat JBoss Enterprise Application Platform Expansion Pack——No fix listedCNA
  • Red Hat build of Keycloak 26.4 VendorRed Hat Affected — Fixed in 26.4.14-1 Patch available CNA
  • Red Hat build of Keycloak 26.4 VendorRed Hat Affected — Fixed in 26.4-22 Patch available CNA
  • Red Hat build of Keycloak 26.4 VendorRed Hat Affected — Fixed in 26.4-22 Patch available CNA
  • Red Hat build of Keycloak 26.4.14 VendorRed Hat Affected — Fixed in — Not affected CNA
  • Red Hat build of Keycloak 26.4.14 VendorRed Hat Affected — Fixed in — Not affected CNA
  • Red Hat build of Keycloak 26.6 VendorRed Hat Affected — Fixed in 26.6.5-1 Patch available CNA
  • Red Hat build of Keycloak 26.6 VendorRed Hat Affected — Fixed in 26.6-11 Patch available CNA
  • Red Hat build of Keycloak 26.6 VendorRed Hat Affected — Fixed in 26.6-11 Patch available CNA
  • Red Hat build of Keycloak 26.6.5 VendorRed Hat Affected — Fixed in — Not affected CNA
  • Red Hat build of Keycloak 26.6.5 VendorRed Hat Affected — Fixed in — Not affected CNA
  • Red Hat build of Keycloak 26.6.5 VendorRed Hat Affected — Fixed in — Not affected CNA
  • Red Hat JBoss Enterprise Application Platform Expansion Pack VendorRed Hat Affected — Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:redhat:build_of_keycloak:-:*:*:*:*:*:*:*not specified by NVDVulnerableRed Hat
cpe:2.3:a:redhat:jboss_enterprise_application_platform_expansion_pack:-:*:*:*:*:*:*:*not specified by NVDVulnerableRed Hat
  • cpe:2.3:a:redhat:build_of_keycloak:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Red Hat
  • cpe:2.3:a:redhat:jboss_enterprise_application_platform_expansion_pack:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Red Hat

Remediation

Red Hat 4 advisories

  • RHSA-2026:50849 Released 2026-08-05 · Red Hat rating Important
    Red Hat build of Keycloak 26.6.5 Images Security Update
    • Red Hat build of Keycloak 26.6 rhbk/keycloak-operator-bundle, rhbk/keycloak-rhel9, rhbk/keycloak-rhel9-operator
  • RHSA-2026:50847 Released 2026-08-05 · Red Hat rating Important
    Red Hat build of Keycloak 26.4.14 Images Security Update
    • Red Hat build of Keycloak 26.4 rhbk/keycloak-operator-bundle, rhbk/keycloak-rhel9, rhbk/keycloak-rhel9-operator
  • RHSA-2026:50846 Released 2026-08-05 · Red Hat rating Important
    Red Hat build of Keycloak 26.4.14 Security Update
    • Red Hat build of Keycloak 26.4.14
Show 1 more Red Hat advisories
  • RHSA-2026:50848 Released 2026-08-05 · Red Hat rating Important
    Red Hat build of Keycloak 26.6.5 Security Update
    • Red Hat build of Keycloak 26.6.5

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat JBoss Enterprise Application Platform Expansion PackAffectedNo fix yet: Fix deferred
Red Hat build of Keycloak 26.4Fixed RHSA-2026:50847
Red Hat build of Keycloak 26.4.14Fixed RHSA-2026:50846
Red Hat build of Keycloak 26.6Fixed RHSA-2026:50849
Red Hat build of Keycloak 26.6.5Fixed RHSA-2026:50848

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-14209
  2. 2026-10-03 Alias added: GHSA-xmfr-m52w-m2hx

References

Advisory 6

  • 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