What is CVE-2026-16093?

CVE-2026-16093 is a medium-severity vulnerability in Red Hat Build Of Keycloak, classified under CWE-807. CVSS score: 5.4/10. Published 2026-07-17.

How severe is CVE-2026-16093?

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

Vulnerability in Red Hat Build Of Keycloak

CVE-2026-16093

Keycloak provides a mechanism called Client Policies to enforce security requirements on clients, such as requiring them to use signed JWTs for authentication. A flaw was discovered where this enforcement can be bypassed. An attacker with…

CVSS v3 metric

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

Weakness classification (CWE)

CWE-807

References

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

Frequently asked questions

What is CVE-2026-16093?: CVE-2026-16093 is a medium-severity vulnerability in Red Hat Build Of Keycloak, classified under CWE-807. CVSS score: 5.4/10. Published 2026-07-17.
How severe is CVE-2026-16093?: Medium severity. CVSS v3 base score is 5.4 out of 10.