TI-2026-82798 Aliases CVE-2026-118947 GHSA-59wr-5w6r-wq5f

Authorization bypass in Keycloak UMA resource registration endpoint

LOW 19CWE-639Published 2026-10-30 · Updated 2026-11-04

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Security bypass
Confidentiality · integrity · availability: None · Low · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-639.

Summary

Red Hat Build of Keycloak is affected by an authorization bypass through a user-controlled key (CWE-639) in the UMA resource registration endpoint of keycloak-services. When remote resource management is enabled, an authenticated user with specific permissions can update resources they do not own by supplying a target resource ID. This allows unauthorized changes to resource names, URIs and scopes.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Description from the CNA

A flaw was found in the UMA resource registration endpoint of the keycloak-services component, which provides the core logic for Keycloak's authorization and identity services. The issue occurs when remote resource management is enabled, allowing an authenticated user with specific permissions to update resources they do not own by providing a target resource ID in a request. This can lead to unauthorized modification of resource configurations, such as names, URIs, and scopes.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00198 9th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

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

Vendor	Product	Affected versions	Fixed in	Status	Source
Red Hat	Red Hat Build of Keycloak	—	—	No fix listed	CNA
Red Hat	Red Hat Build of Keycloak	—	—	No fix listed	CNA
Red Hat	Red Hat Single Sign-On 7	—	—	Not affected	CNA

Red Hat Build of Keycloak VendorRed Hat Affected — Fixed in — No fix listed CNA
Red Hat Build of Keycloak VendorRed Hat Affected — Fixed in — No fix listed CNA
Red Hat Single Sign-On 7 VendorRed Hat Affected — Fixed in — Not affected CNA

CPE names CNA · 2

CPE	Versions	Role	Vendor
cpe:/a:redhat:build_keycloak:	—	—	Red Hat
cpe:/a:redhat:red_hat_single_sign_on:7	7	—	Red Hat

cpe:/a:redhat:build_keycloak: Versions — — ·Red Hat
cpe:/a:redhat:red_hat_single_sign_on:7 Versions 7 — ·Red Hat

Remediation

The sources list no fixed version for Red Hat Build of Keycloak. Red Hat lists no available plan for a fix. Red Hat Single Sign-On 7 is not affected.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Vendor assessments

Red Hat

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

Product	Status	Plan or fix
Red Hat Build of Keycloak	Affected	No fix yet

Not affected: 1 product

Red Hat Single Sign-On 7

Timeline

2026-10-30 Threatist record created from CVE-2026-118947
2026-10-30 Alias added: GHSA-59wr-5w6r-wq5f
2026-11-04 CISA SSVC decision points changed

References

Other 2

TI-2019-15875 Protection mechanism failure in Jenkins Pipeline: Groovy Plugin KEVCVSS 3.1CRITICAL 9.9
TI-2019-15874 Protection mechanism failure in Jenkins Script Security Plugin KEVCVSS 3.1CRITICAL 9.9
TI-2019-08259 Underflow in PHP-FPM can lead to RCE KEVCVSS 3.1CRITICAL 9.8
TI-2019-05363 Code injection in Elastic Kibana KEVCVSS 3.1CRITICAL 10.0
TI-2019-03949 Out-of-bounds write in ESXi and Horizon DaaS KEVCVSS 3.1CRITICAL 9.8
TI-2018-16080 A code execution vulnerability exists in the Stapler web framework used by Jenkins 2.153… KEVCVSS 3.1CRITICAL 9.8

See all 7413 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences