Medium 6.5Published Jan 21, 2026

CVE-2025-14559Org.keycloak/keycloak-services: keycloak keycloak-services: business logic flaw allows unauthorized token issuance for disabled users

Updated under an hour ago (Oct 28, 2026, 9:00 PM ET)

Does this affect you?

It affects Red Hat build of Keycloak 26.4. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Red Hat build of Keycloak 26.4

Exploited in the last 30 days

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.

CVSS: 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Weakness (CWE): CWE-840
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: redhat
NVD analysis: Deferred
Record last updated: Feb 9, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Red Hat Red Hat build of Keycloak 26.4 redhat:build_keycloak	from 26.4.9-1 not affected	CNA record

References

References

https://access.redhat.com/errata/RHSA-2026:2365	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:2366	vendor-advisory, x-refsource-redhat
https://access.redhat.com/security/cve/CVE-2025-14559	vdb-entry, x-refsource-redhat
https://bugzilla.redhat.com/show_bug.cgi?id=2421711	issue-tracking, x-refsource-redhat

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.