What is CVE-2025-12789?

CVE-2025-12789 is a medium-severity vulnerability in Red Hat Single Sign-On 7, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 6.1/10. Published 2025-11-07.

How severe is CVE-2025-12789?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Open Redirect in Red Hat Single Sign-On 7

CVE-2025-12789

A flaw was found in Red Hat Single Sign-On. This issue is an Open Redirect vulnerability that occurs during the logout process. The redirect_uri parameter associated with the openid-connect logout protocol does not properly validate the provided URL.

Vulnerability class: Open Redirect

EPSS: 0.002 (7.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Red Hat Single Sign-on 7

Weakness classification (CWE)

CWE-601 — URL Redirection to Untrusted Site (Open Redirect)

References

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

Frequently asked questions

What is CVE-2025-12789?: CVE-2025-12789 is a medium-severity vulnerability in Red Hat Single Sign-On 7, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 6.1/10. Published 2025-11-07.
How severe is CVE-2025-12789?: Medium severity. CVSS v3 base score is 6.1 out of 10.