TI-2026-82799 Aliases CVE-2026-118959 GHSA-74cm-5prx-222c

Keycloak required actions can be bypassed via kc_action parameter

LOW 24CWE-287Published 2026-10-30 · Updated 2026-11-03

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Security bypass
Confidentiality · integrity · availability: Low · 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-287.

Summary

Red Hat Build of Keycloak is affected. Incorrect handling of application-initiated actions in the required action provider mechanism (CWE-287) lets Keycloak skip mandatory challenges when the kc_action parameter names a required action already assigned to the user. An authenticated user with low privileges can obtain an authorization code without completing profile updates or agreeing to terms, bypassing administrative requirements.

Written with Claude Haiku 5.5 from the sources below · 2026-11-03

Description from the CNA

A flaw was found in the required action provider mechanism of Keycloak. The issue occurs when an authorization request includes the kc_action query parameter set to a mandatory action already assigned to the user, such as profile verification or terms and conditions. Due to incorrect handling of application-initiated actions, Keycloak may skip these mandatory challenges and issue an authorization code. This can allow a user to bypass administrative requirements and gain access to the application without completing necessary profile updates or agreeing to terms.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00195 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 states that no fix plan is available for it. Red Hat Single Sign-On 7 is not affected.

Written with Claude Haiku 5.5 from the sources below · 2026-11-03

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-2026-118959
2026-10-30 Alias added: GHSA-74cm-5prx-222c
2026-10-31 Priority changed: MEDIUM → LOW
2026-11-03 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