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TI-2026-02002 Aliases CVE-2026-2366GHSA-r8jr-wg88-fq5c

Keycloak: keycloak: information disclosure via authorization bypass in admin api

Priority LOW 15CWE-639Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
High
Impact type
Security bypass
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-639.

Summary

A flaw was found in Keycloak. An authorization bypass vulnerability in the Keycloak Admin API allows any authenticated user, even those without administrative privileges, to enumerate the organization memberships of other users. This information disclosure occurs if the attacker knows the victim's unique identifier (UUID) and the Organizations feature is enabled.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00296 22nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
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
—@keycloak/keycloak-admin-client (npm)up to 26.5.5—No fix listedGHSA-r8jr-wg88-fq5c
—org.keycloak:keycloak-js-admin-client (Maven)up to 26.5.5—No fix listedGHSA-r8jr-wg88-fq5c
  • 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
  • @keycloak/keycloak-admin-client (npm) Vendor— Affected up to 26.5.5 Fixed in — No fix listed GHSA-r8jr-wg88-fq5c
  • org.keycloak:keycloak-js-admin-client (Maven) Vendor— Affected up to 26.5.5 Fixed in — No fix listed GHSA-r8jr-wg88-fq5c

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:redhat:build_of_keycloak:*:*:*:*:*:*:*:*26.4 to before 26.4.11VulnerableRed Hat
  • cpe:2.3:a:redhat:build_of_keycloak:*:*:*:*:*:*:*:* Versions 26.4 to before 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-2026-2366
  2. 2026-10-03 Alias added: GHSA-r8jr-wg88-fq5c

References

Exploit 1

Advisory 4

Other 2

  • 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