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TI-2026-02598 Aliases CVE-2026-3009GHSA-m297-3jv9-m927

Incorrect authorization in Red Hat build of Keycloak 26.4

Priority LOW 37CWE-863Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · None
Fix status
Partial Red Hat: 2 fixed, 1 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-863.

Summary

A security flaw in the IdentityBrokerService.performLogin endpoint of Keycloak allows authentication to proceed using an Identity Provider (IdP) even after it has been disabled by an administrator. An attacker who knows the IdP alias can reuse a previously generated login request to bypass the administrative restriction. This undermines access control enforcement and may allow unauthorized authentication through a disabled external provider.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0038 32nd percentileScored 2026-11-07
Fix Partial org.keycloak:keycloak-services (Maven): 26.5.5Red Hat: 2 advisoriesRed Hat: 2 fixed, 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

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—26.4.10-1Patch availableCNA
Red HatRed Hat build of Keycloak 26.4—26.4-12Patch availableCNA
Red HatRed Hat build of Keycloak 26.4—26.4-12Patch availableCNA
Red HatRed Hat build of Keycloak 26.4.10——Not affectedCNA
Red HatRed Hat JBoss Enterprise Application Platform 8——Not affectedCNA
Red HatRed Hat JBoss Enterprise Application Platform Expansion Pack——Not affectedCNA
Red HatRed Hat Single Sign-On 7——No fix listedCNA
—org.keycloak:keycloak-services (Maven)before 26.5.526.5.5Patch availableGHSA-m297-3jv9-m927
  • Red Hat build of Keycloak 26.4 VendorRed Hat Affected — Fixed in 26.4.10-1 Patch available CNA
  • Red Hat build of Keycloak 26.4 VendorRed Hat Affected — Fixed in 26.4-12 Patch available CNA
  • Red Hat build of Keycloak 26.4 VendorRed Hat Affected — Fixed in 26.4-12 Patch available CNA
  • Red Hat build of Keycloak 26.4.10 VendorRed Hat Affected — Fixed in — Not affected CNA
  • Red Hat JBoss Enterprise Application Platform 8 VendorRed Hat Affected — Fixed in — Not affected CNA
  • Red Hat JBoss Enterprise Application Platform Expansion Pack VendorRed Hat Affected — Fixed in — Not affected CNA
  • Red Hat Single Sign-On 7 VendorRed Hat Affected — Fixed in — No fix listed CNA
  • org.keycloak:keycloak-services (Maven) Vendor— Affected before 26.5.5 Fixed in 26.5.5 Patch available GHSA-m297-3jv9-m927

CPE configurations NVD · 6

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:26.4.10:*:*:*:*:*:*:*26.4.10VulnerableRed Hat
cpe:2.3:a:redhat:jboss_enterprise_application_platform:8.0:*:*:*:*:*:*:*8.0VulnerableRed Hat
cpe:2.3:a:redhat:jboss_enterprise_application_platform_expansion_pack:-:*:*:*:*:*:*:*not specified by NVDVulnerableRed Hat
cpe:2.3:a:redhat:single_sign-on:7.0:*:*:*:*:*:*:*7.0VulnerableRed 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:26.4.10:*:*:*:*:*:*:* Versions 26.4.10 Vulnerable ·Red Hat
  • cpe:2.3:a:redhat:jboss_enterprise_application_platform:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Red Hat
  • cpe:2.3:a:redhat:jboss_enterprise_application_platform_expansion_pack:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Red Hat
  • cpe:2.3:a:redhat:single_sign-on:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat

Remediation

  • Fix · GHSA-m297-3jv9-m927 org.keycloak:keycloak-services (Maven) Fixed in 26.5.5 Advisory →

Red Hat 2 advisories

  • RHSA-2026:3948 Released 2026-03-05 · Red Hat rating Important
    Red Hat build of Keycloak 26.4.10 Images Update
    • Red Hat build of Keycloak 26.4 rhbk/keycloak-operator-bundle, rhbk/keycloak-rhel9, rhbk/keycloak-rhel9-operator
  • RHSA-2026:3947 Released 2026-03-05 · Red Hat rating Important
    Red Hat build of Keycloak 26.4.10 Update
    • Red Hat build of Keycloak 26.4.10

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Single Sign-On 7AffectedNo fix planned: Out of support scope
Red Hat build of Keycloak 26.4Fixed RHSA-2026:3948
Red Hat build of Keycloak 26.4.10Fixed RHSA-2026:3947
Not affected: 2 products
  • Red Hat JBoss Enterprise Application Platform 8
  • Red Hat JBoss Enterprise Application Platform Expansion Pack

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-3009
  2. 2026-10-03 Alias added: GHSA-m297-3jv9-m927

References

Advisory 5

Other 4

  • 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