CVE-2025-14559
MEDIUM6.5EPSS 0.02%Keycloak services allows the issuance of access and refresh tokens for disabled users
Published: 1/21/2026Modified: 2/13/2026
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.
Affected packages (1)
- Maven/org.keycloak:keycloak-services>= 26.5.0, < 26.5.2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N |
References (10)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2025-14559
- PATCHhttps://github.com/keycloak/keycloak
- WEBhttps://access.redhat.com/errata/RHSA-2026:2365
- WEBhttps://access.redhat.com/errata/RHSA-2026:2366
- WEBhttps://access.redhat.com/security/cve/CVE-2025-14559
- WEBhttps://bugzilla.redhat.com/show_bug.cgi?id=2421711
- WEBhttps://github.com/keycloak/keycloak/commit/2d0aa31c4830ebaad094c3762e78b884c141e659
- WEBhttps://github.com/keycloak/keycloak/commit/d67349f3aa9fed5c61750619d0f9de6356aeaeff
- WEBhttps://github.com/keycloak/keycloak/issues/45651
- WEBhttps://github.com/keycloak/keycloak/releases/tag/26.5.2