What is CVE-2026-16089?

CVE-2026-16089 is a medium-severity vulnerability in Red Hat Build Of Keycloak. CVSS score: 5.4/10. Published 2026-07-17.

How severe is CVE-2026-16089?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Vulnerability in Red Hat Build Of Keycloak

CVE-2026-16089

A flaw was found in the keycloak-services component of Red Hat Build of Keycloak. The issue occurs because OAuth 2.0 authorization codes are not properly bound to the client that originally requested them. An attacker who can intercept an…

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:L/A:N.

Affected products

Red Hat Build Of Keycloak
Red Hat Data Grid 8
Red Hat Jboss Enterprise Application Platform Expansion Pack
Red Hat Single Sign-on 7

References

secalert@redhat.com (x_refsource_REDHAT, vdb-entry)
secalert@redhat.com (x_refsource_REDHAT, issue-tracking)

Frequently asked questions

What is CVE-2026-16089?: CVE-2026-16089 is a medium-severity vulnerability in Red Hat Build Of Keycloak. CVSS score: 5.4/10. Published 2026-07-17.
How severe is CVE-2026-16089?: Medium severity. CVSS v3 base score is 5.4 out of 10.