Vulnerability in Red Hat Build Of Keycloak 26.4
CVE-2025-14559
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 · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.005 (40.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 40.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: +0.000
Affected products
- Red Hat Build Of Keycloak 26.4 — versions 26.4.9-1, 26.4-11, 26.4-10
- Red Hat Build Of Keycloak 26.4.9
Weakness classification (CWE)
References
- access.redhat.com/errata/RHSA-2026:2365 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:2366 (vendor-advisory)
- access.redhat.com/security/cve/CVE-2025-14559 (vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking)
Frequently asked questions
- What is CVE-2025-14559?
- CVE-2025-14559 is a medium-severity vulnerability in Red Hat Build Of Keycloak 26.4, classified under CWE-840. CVSS score: 6.5/10. Published 2026-01-21.
- How severe is CVE-2025-14559?
- Medium severity. CVSS v3 base score is 6.5 out of 10.