Read the docs
TI-2026-13106 Aliases CVE-2026-15572GHSA-cj2r-7gqh-wx4f

Keycloak-services: keycloak-services: dcr protocol mapper type-swap policy bypass allows privilege escalation

Priority MEDIUM 41CWE-843Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-843 and the CVSS impact.

Summary

A flaw was found in Keycloak's Dynamic Client Registration (DCR) security policy management. The "Allowed Protocol Mapper Types" policy, which restricts which types of data mappers a client can use, fails to re-validate the mapper type during a client update if the mapper's configuration remains unchanged. An attacker with client registration privileges can exploit this by first registering an allowed mapper type with a malicious configuration and then swapping it for a restricted, high-privilege mapper type (such as one that hardcodes administrative roles). This allows the attacker to gain full administrative access to the Keycloak realm.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00652 51st percentileScored 2026-11-07
Fix Fixed Red Hat: 4 advisories

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—26.4.14-1Patch 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 26.6—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 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 26.6 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

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:redhat:build_of_keycloak:*:*:*:*:*:*:*:*26.4 to before 26.4.14; 26.6 to before 26.6.5VulnerableRed Hat
  • cpe:2.3:a:redhat:build_of_keycloak:*:*:*:*:*:*:*:* Versions 26.4 to before 26.4.14; 26.6 to before 26.6.5 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: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
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-2026-15572
  2. 2026-10-03 Alias added: GHSA-cj2r-7gqh-wx4f
  3. 2026-10-14 EPSS moved to the 50th–90th percentile

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-2026-02631 Authentication bypass in Red Hat build of Keycloak 26.2 CVSS 3.1HIGH 8.8
  • TI-2026-08505 Keycloak: keycloak: privilege escalation due to oversized subject_token jwt 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