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TI-2026-01746 Aliases CVE-2026-2092GHSA-794g-x443-36f7

Keycloak-services: keycloak: unauthorized access via improper validation of encrypted saml assertions

Priority LOW 34CWE-1287Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Red Hat.

Summary

A flaw was found in Keycloak. Keycloak's Security Assertion Markup Language (SAML) broker endpoint does not properly validate encrypted assertions when the overall SAML response is not signed. An attacker with a valid signed SAML assertion can exploit this by crafting a malicious SAML response. This allows the attacker to inject an encrypted assertion for an arbitrary principal, leading to unauthorized access and potential information disclosure.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00383 32nd percentileScored 2026-11-07
Fix Fixed org.keycloak:keycloak-services (Maven): 26.5.5Red Hat: 9 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 26.2—26.2.14-1Patch availableCNA
Red HatRed Hat build of Keycloak 26.2—26.2-16Patch availableCNA
Red HatRed Hat build of Keycloak 26.2—26.2-16Patch availableCNA
Red HatRed Hat build of Keycloak 26.2.14——Not affectedCNA
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 Single Sign-On 7.6.13——Not affectedCNA
Red HatRed Hat Single Sign-On 7.6 for RHEL 7—18.0.20-1.redhat_00001.1.el7ssoPatch availableCNA
Red HatRed Hat Single Sign-On 7.6 for RHEL 8—18.0.20-1.redhat_00001.1.el8ssoPatch availableCNA
Red HatRed Hat Single Sign-On 7.6 for RHEL 9—18.0.20-1.redhat_00001.1.el9ssoPatch availableCNA
Red HatRHEL-8 based Middleware Containers—7.6-85Patch availableCNA
—org.keycloak:keycloak-services (Maven)up to 26.2.5—No fix listedGHSA-794g-x443-36f7
—org.keycloak:keycloak-services (Maven)26.3.0 – 26.4.7—No fix listedGHSA-794g-x443-36f7
—org.keycloak:keycloak-services (Maven)26.5.0 to before 26.5.526.5.5Patch availableGHSA-794g-x443-36f7
  • Red Hat build of Keycloak 26.2 VendorRed Hat Affected — Fixed in 26.2.14-1 Patch available CNA
  • Red Hat build of Keycloak 26.2 VendorRed Hat Affected — Fixed in 26.2-16 Patch available CNA
  • Red Hat build of Keycloak 26.2 VendorRed Hat Affected — Fixed in 26.2-16 Patch available CNA
  • Red Hat build of Keycloak 26.2.14 VendorRed Hat Affected — Fixed in — Not affected CNA
  • 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 Single Sign-On 7.6.13 VendorRed Hat Affected — Fixed in — Not affected CNA
  • Red Hat Single Sign-On 7.6 for RHEL 7 VendorRed Hat Affected — Fixed in 18.0.20-1.redhat_00001.1.el7sso Patch available CNA
  • Red Hat Single Sign-On 7.6 for RHEL 8 VendorRed Hat Affected — Fixed in 18.0.20-1.redhat_00001.1.el8sso Patch available CNA
  • Red Hat Single Sign-On 7.6 for RHEL 9 VendorRed Hat Affected — Fixed in 18.0.20-1.redhat_00001.1.el9sso Patch available CNA
  • RHEL-8 based Middleware Containers VendorRed Hat Affected — Fixed in 7.6-85 Patch available CNA
  • org.keycloak:keycloak-services (Maven) Vendor— Affected up to 26.2.5 Fixed in — No fix listed GHSA-794g-x443-36f7
  • org.keycloak:keycloak-services (Maven) Vendor— Affected 26.3.0 – 26.4.7 Fixed in — No fix listed GHSA-794g-x443-36f7
  • org.keycloak:keycloak-services (Maven) Vendor— Affected 26.5.0 to before 26.5.5 Fixed in 26.5.5 Patch available GHSA-794g-x443-36f7

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:redhat:build_of_keycloak:*:*:*:*:*:*:*:*26.2 to before 26.2.14; 26.4 to before 26.4.10VulnerableRed Hat
  • cpe:2.3:a:redhat:build_of_keycloak:*:*:*:*:*:*:*:* Versions 26.2 to before 26.2.14; 26.4 to before 26.4.10 Vulnerable ·Red Hat

Remediation

  • Fix · GHSA-794g-x443-36f7 org.keycloak:keycloak-services (Maven) Fixed in 26.5.5 Advisory →

Red Hat 9 advisories

  • RHSA-2026:76128 Released 2026-10-06 · Red Hat rating Important
    Red Hat Single Sign-On 7.6.13 security update on RHEL 7
    • Red Hat Single Sign-On 7.6 for RHEL 7 Server rh-sso7-keycloak-18.0.20-1.redhat_00001.1.el7sso, rh-sso7-keycloak-server-18.0.20-1.redhat_00001.1.el7sso
  • RHSA-2026:76130 Released 2026-10-06 · Red Hat rating Important
    Red Hat Single Sign-On 7.6.13 security update on RHEL 9
    • Red Hat Single Sign-On 7.6 for RHEL 9 rh-sso7-keycloak-18.0.20-1.redhat_00001.1.el9sso, rh-sso7-keycloak-server-18.0.20-1.redhat_00001.1.el9sso
  • RHSA-2026:76129 Released 2026-10-06 · Red Hat rating Important
    Red Hat Single Sign-On 7.6.13 security update on RHEL 8
    • Red Hat Single Sign-On 7.6 for RHEL 8 rh-sso7-keycloak-18.0.20-1.redhat_00001.1.el8sso, rh-sso7-keycloak-server-18.0.20-1.redhat_00001.1.el8sso
Show 6 more Red Hat advisories
  • RHSA-2026:76134 Released 2026-10-05 · Red Hat rating Important
    Red Hat Single Sign-On 7.6.13 for OpenShift image security update
    • Middleware Containers for OpenShift rh-sso-7/sso76-openshift-rhel8
  • RHSA-2026:76132 Released 2026-10-05 · Red Hat rating Important
    Red Hat Single Sign-On 7.6.13 security update
    • Red Hat Single Sign-On 7.6.13
  • 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
  • RHSA-2026:3925 Released 2026-03-05 · Red Hat rating Important
    Red Hat build of Keycloak 26.2.14 Images Update
    • Red Hat build of Keycloak 26.2 rhbk/keycloak-operator-bundle, rhbk/keycloak-rhel9, rhbk/keycloak-rhel9-operator
  • RHSA-2026:3926 Released 2026-03-05 · Red Hat rating Important
    Red Hat build of Keycloak 26.2.14 Update
    • Red Hat build of Keycloak 26.2.14

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Middleware Containers for OpenShiftFixed RHSA-2026:76134
Red Hat Single Sign-On 7.6 for RHEL 7 ServerFixed RHSA-2026:76128
Red Hat Single Sign-On 7.6 for RHEL 8Fixed RHSA-2026:76129
Red Hat Single Sign-On 7.6 for RHEL 9Fixed RHSA-2026:76130
Red Hat Single Sign-On 7.6.13Fixed RHSA-2026:76132
Red Hat build of Keycloak 26.2Fixed RHSA-2026:3925
Red Hat build of Keycloak 26.2.14Fixed RHSA-2026:3926
Red Hat build of Keycloak 26.4Fixed RHSA-2026:3948
Red Hat build of Keycloak 26.4.10Fixed RHSA-2026:3947

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-2092
  2. 2026-10-03 Alias added: GHSA-794g-x443-36f7
  3. 2026-10-06 Fix available: rh-sso-7/[email protected] · CNA
  4. 2026-10-06 2 new references · CNA
  5. 2026-10-06 Fix available: RHSA-2026:76134 · Red Hat
  6. 2026-10-06 Fix available: RHSA-2026:76132 · Red Hat
  7. 2026-10-06 Fix available: RHSA-2026:76129 · Red Hat
  8. 2026-10-06 Fix available: RHSA-2026:76130 · Red Hat
  9. 2026-10-06 Fix available: Middleware Containers for OpenShift, Red Hat Single Sign-On 7.6 for RHEL 8, Red Hat Single Sign-On 7.6 for RHEL 9 +1 · Red Hat
  10. 2026-10-06 Fix available: rh-sso7-keycloak@0:18.0.20-1.redhat_00001.1.el8sso, rh-sso7-keycloak@0:18.0.20-1.redhat_00001.1.el9sso · CNA
  11. 2026-10-06 2 new references · CNA
  12. 2026-10-06 Fix available: rh-sso7-keycloak@0:18.0.20-1.redhat_00001.1.el7sso · CNA
  13. 2026-10-06 1 new reference · CNA
  14. 2026-10-07 Fix available: RHSA-2026:76128 · Red Hat
  15. 2026-10-07 Fix available: Red Hat Single Sign-On 7.6 for RHEL 7 Server · Red Hat

References

Advisory 13

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