CVE-2025-14559

Org.keycloak/keycloak-services: keycloak keycloak-services: business logic flaw allows unauthorized token issuance for disabled users

State: Published
Severity: 6.5 Medium
Published: Jan 21, 2026
Updated: Feb 10, 2026
Reserved: Dec 12, 2025

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Description

A flaw was found in the keycloak-services component of Keycloak. This vulnerability allows the issuance of access and refresh tokens for disabled users, leading to unauthorized use of previously revoked privileges, via a business logic vulnerability in the Token Exchange implementation when a privileged client invokes the token exchange flow.

Scores

CVSS	Score	Vector	Source
3.1	6.5 Medium	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N	redhat

Weaknesses

CWE-840

Affected Products

Product	Versions
Red Hat build of Keycloak 26.4Red Hat	26.4.9-1 and laterNot affected
Red Hat build of Keycloak 26.4Red Hat	26.4-11 and laterNot affected
Red Hat build of Keycloak 26.4Red Hat	26.4-10 and laterNot affected
Red Hat build of Keycloak 26.4.9Red Hat

References

RHSA-2026:2365vendor-advisory
RHSA-2026:2366vendor-advisory
https://access.redhat.com/security/cve/CVE-2025-14559vdb-entry
RHBZ#2421711issue-tracking

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