Medium · CVSS 6.8CVE-2026-125652

Keycloak-services: keycloak-services: client-level mandatory pkce bypass via login-actions entry pointCVE-2026-125652

Answer in brief

CVE-2026-125652 records a Medium severity (CVSS 6.8) vulnerability in Keycloak-services: keycloak-services: client-level mandatory pkce bypass via login-actions entry point. The current sources do not mark it as known exploited. The current feed maps Red Hat/keycloak-services (generic), Red Hat/rhbk/keycloak-rhel9 (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Nov 10, 2026Updated Nov 10, 2026Source checked Nov 10, 2026First seen by HOL Nov 10, 2026Material review Nov 10, 2026

Upstream Advisory

Key facts

Risk: Medium · CVSS 6.8
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Not reported

Why this deserves its current priority

CVSS is 6.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Red Hat/keycloak-services (generic), Red Hat/rhbk/keycloak-rhel9 (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Red Hat/keycloak-servicesgeneric	*	Not reported
Red Hat/rhbk/keycloak-rhel9generic	*	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Red Hat/keycloak-services, Red Hat/rhbk/keycloak-rhel9.
Review the reported fix. Source-reported workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

Evidence timeline and material changes

Published upstream
Nov 10, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Nov 10, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Nov 10, 2026

Sources and claim methodology

Upstream source description

A flaw was found in the keycloak-services component of Keycloak, which provides the core authentication and authorization logic for the identity provider. The issue occurs when a user initiates a login after visiting the password reset page, causing the system to skip mandatory security checks for Proof Key for Code Exchange (PKCE). This could allow an attacker who intercepts a login code to gain unauthorized access to the user's account without needing the required security verifier.

Quoted source text, attributed separately from HOL analysis.