Home

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.

PUBLISHED Reserved 2025-12-12 | Published 2026-01-21 | Updated 2026-02-10 | Assigner redhat




MEDIUM: 6.5CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

Problem types

CWE-840

Product status

Default status
affected

26.4.9-1 (rpm) before *
unaffected

Default status
affected

26.4-11 (rpm) before *
unaffected

Default status
affected

26.4-10 (rpm) before *
unaffected

Default status
unaffected

Timeline

2025-12-12:Reported to Red Hat.
2026-01-21:Made public.

Credits

Red Hat would like to thank Aytac Kalinci for reporting this issue.

References

access.redhat.com/errata/RHSA-2026:2365 (RHSA-2026:2365) vendor-advisory

access.redhat.com/errata/RHSA-2026:2366 (RHSA-2026:2366) vendor-advisory

access.redhat.com/security/cve/CVE-2025-14559 vdb-entry

bugzilla.redhat.com/show_bug.cgi?id=2421711 (RHBZ#2421711) issue-tracking

cve.org (CVE-2025-14559)

nvd.nist.gov (CVE-2025-14559)

Download JSON