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Keycloak-policy-enforcer: keycloak policy enforcer: authorization bypass via incorrect uri comparison

Priority LOW 38CWE-1025Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · None
Fix status
Partial Red Hat: 7 fixed, 2 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 Policy Enforcer. This vulnerability allows any authenticated user to bypass all authorization policies, including role, scope, and User-Managed Access (UMA) permission checks. By including the configured access-denied page path within a request URL, either as a path segment or a query parameter, an attacker can gain unauthorized access to protected resources.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00651 51st percentileScored 2026-11-07
Fix Partial org.keycloak:keycloak-services (Maven): 26.6.4org.keycloak:keycloak-policy-enforcer (Maven): 26.0.10Red Hat: 8 advisoriesRed Hat: 7 fixed, 2 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—26.4.13-1Patch availableCNA
Red HatRed Hat build of Keycloak 26.4—26.4-19Patch availableCNA
Red HatRed Hat build of Keycloak 26.4—26.4-19Patch availableCNA
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 26.4.13——Not affectedCNA
Red HatRed Hat build of Keycloak 26.4.14——Not affectedCNA
Red HatRed Hat build of Keycloak 26.6—26.6.4-2Patch availableCNA
Red HatRed Hat build of Keycloak 26.6—26.6-8Patch availableCNA
Red HatRed Hat build of Keycloak 26.6—26.6-8Patch availableCNA
Red HatRed Hat build of Keycloak 26.6.4——Not affectedCNA
Red HatRed Hat build of Quarkus 3.27.4.SP2—26.0.10.redhat-00001Patch availableCNA
Red HatRed Hat build of Quarkus 3.33.2.SP2—26.0.10.redhat-00001Patch availableCNA
Red HatRed Hat build of Quarkus——No fix listedCNA
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 26.6.426.6.4Patch availableGHSA-f5p5-6xmx-p252
—org.keycloak:keycloak-policy-enforcer (Maven)before 26.0.1026.0.10Patch availableGHSA-f5p5-6xmx-p252
  • Red Hat build of Keycloak 26.4 VendorRed Hat Affected — Fixed in 26.4.13-1 Patch available CNA
  • Red Hat build of Keycloak 26.4 VendorRed Hat Affected — Fixed in 26.4-19 Patch available CNA
  • Red Hat build of Keycloak 26.4 VendorRed Hat Affected — Fixed in 26.4-19 Patch available CNA
  • 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 26.4.13 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 26.6.4-2 Patch available CNA
  • Red Hat build of Keycloak 26.6 VendorRed Hat Affected — Fixed in 26.6-8 Patch available CNA
  • Red Hat build of Keycloak 26.6 VendorRed Hat Affected — Fixed in 26.6-8 Patch available CNA
  • Red Hat build of Keycloak 26.6.4 VendorRed Hat Affected — Fixed in — Not affected CNA
  • Red Hat build of Quarkus 3.27.4.SP2 VendorRed Hat Affected — Fixed in 26.0.10.redhat-00001 Patch available CNA
  • Red Hat build of Quarkus 3.33.2.SP2 VendorRed Hat Affected — Fixed in 26.0.10.redhat-00001 Patch available CNA
  • Red Hat build of Quarkus VendorRed Hat Affected — Fixed in — No fix listed 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 26.6.4 Fixed in 26.6.4 Patch available GHSA-f5p5-6xmx-p252
  • org.keycloak:keycloak-policy-enforcer (Maven) Vendor— Affected before 26.0.10 Fixed in 26.0.10 Patch available GHSA-f5p5-6xmx-p252

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:redhat:build_of_keycloak:*:*:*:*:*:*:*:*26.4 to before 26.4.13; 26.6 – 26.6.4VulnerableRed Hat
  • cpe:2.3:a:redhat:build_of_keycloak:*:*:*:*:*:*:*:* Versions 26.4 to before 26.4.13; 26.6 – 26.6.4 Vulnerable ·Red Hat

Remediation

  • Fix · GHSA-f5p5-6xmx-p252 org.keycloak:keycloak-services (Maven) Fixed in 26.6.4 Advisory →
  • Fix · GHSA-f5p5-6xmx-p252 org.keycloak:keycloak-policy-enforcer (Maven) Fixed in 26.0.10 Advisory →

Red Hat 8 advisories

  • 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
  • RHSA-2026:36013 Released 2026-07-08 · Red Hat rating Important
    Red Hat build of Quarkus 3.33.2.SP2 security update
    • Red Hat build of Quarkus 3.33.2.SP2 com.fasterxml.jackson.core.jackson-databind-2.21.4.redhat-00002.jar, io.micrometer.micrometer-core-1.16.6.redhat-00001.jar, org.keycloak.keycloak-policy-enforcer-26.0.10.redhat-00001.jar
Show 5 more Red Hat advisories
  • RHSA-2026:36002 Released 2026-07-08 · Red Hat rating Important
    Red Hat build of Quarkus 3.27.4.SP2 security update
    • Red Hat build of Quarkus 3.27.4.SP2 com.fasterxml.jackson.core.jackson-databind-2.21.4.redhat-00002.jar, io.micrometer.micrometer-core-1.14.7.redhat-00002.jar, org.keycloak.keycloak-policy-enforcer-26.0.10.redhat-00001.jar
  • RHSA-2026:30084 Released 2026-06-25 · Red Hat rating Important
    Red Hat build of Keycloak 26.6.4 Images Security Update
    • Red Hat build of Keycloak 26.6 rhbk/keycloak-operator-bundle, rhbk/keycloak-rhel9, rhbk/keycloak-rhel9-operator
  • RHSA-2026:30083 Released 2026-06-25 · Red Hat rating Important
    Red Hat build of Keycloak 26.6.4 Security Update
    • Red Hat build of Keycloak 26.6.4
  • RHSA-2026:30050 Released 2026-06-25 · Red Hat rating Important
    Red Hat build of Keycloak 26.4.13 Images Security Update
    • Red Hat build of Keycloak 26.4 rhbk/keycloak-operator-bundle, rhbk/keycloak-rhel9, rhbk/keycloak-rhel9-operator
  • RHSA-2026:30049 Released 2026-06-25 · Red Hat rating Important
    Red Hat build of Keycloak 26.4.13 Security Update
    • Red Hat build of Keycloak 26.4.13

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 QuarkusAffectedNo fix planned: Out of support scope
Red Hat build of Keycloak 26.4Fixed RHSA-2026:30050, RHSA-2026:50847
Red Hat build of Keycloak 26.4.13Fixed RHSA-2026:30049
Red Hat build of Keycloak 26.4.14Fixed RHSA-2026:50846
Red Hat build of Keycloak 26.6Fixed RHSA-2026:30084
Red Hat build of Keycloak 26.6.4Fixed RHSA-2026:30083
Red Hat build of Quarkus 3.27.4.SP2Fixed RHSA-2026:36002
Red Hat build of Quarkus 3.33.2.SP2Fixed RHSA-2026:36013
Not affected: 3 products
  • Red Hat JBoss Enterprise Application Platform Expansion Pack
  • Red Hat build of Quarkus 3.27.4.SP2
  • Red Hat build of Quarkus 3.33.2.SP2

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-9800
  2. 2026-10-03 Alias added: GHSA-79qw-g39g-mfxc
  3. 2026-10-09 Fix available: RHSA-2026:36013 · Red Hat
  4. 2026-10-09 Fix available: RHSA-2026:36002 · Red Hat
  5. 2026-10-15 Affected versions changed · CNA
  6. 2026-10-16 EPSS moved to the 50th–90th percentile
  7. 2026-10-16 Fix available: Red Hat build of Quarkus 3.27.4.SP2, Red Hat build of Quarkus 3.33.2.SP2 · Red Hat
  8. 2026-10-20 Fix available: org.keycloak/[email protected] · CNA
  9. 2026-10-20 Affected versions changed · Red Hat
  10. 2026-10-29 Alias added: GHSA-f5p5-6xmx-p252
  11. 2026-10-29 Fix available: Maven/org.keycloak:[email protected], Maven/org.keycloak:[email protected] · GHSA-f5p5-6xmx-p252
  12. 2026-10-29 CVSS score added · GHSA-f5p5-6xmx-p252
  13. 2026-10-29 Weakness changed · GHSA-f5p5-6xmx-p252
  14. 2026-10-29 14 new references · GHSA-f5p5-6xmx-p252

References

  • 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