Information disclosure in Red Hat Build Of Keycloak

CVE-2026-107604

A flaw was found in the installation provider and client registration endpoints of the Keycloak identity management service. A realm administrator with only the read-only view-clients role can access the active primary secret of any confidential client, which should normally be restricted. This exposed secret can be used to impersonate the client and gain unauthorized access to its associated service account permissions.

Vulnerability class: Information Disclosure

Published · last modified .

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-107604?
CVE-2026-107604 is a medium-severity vulnerability in Red Hat Build Of Keycloak, classified under Information Disclosure. CVSS score: 4.9/10. Published 2026-10-08.
How severe is CVE-2026-107604?
Medium severity. CVSS v3 base score is 4.9 out of 10.