What is CVE-2026-42965?

CVE-2026-42965 is a high-severity vulnerability in Red Hat Openshift Container Platform 4, classified under Server-Side Request Forgery (SSRF). CVSS score: 7.7/10. Published 2026-05-29.

How severe is CVE-2026-42965?

High severity. CVSS v3 base score is 7.7 out of 10.

SSRF in Red Hat Openshift Container Platform 4

CVE-2026-42965

A flaw was found in the OpenShift Router. A user with EndpointSlice write access can exploit this vulnerability by creating a Service backed by an FQDN (Fully Qualified Domain Name) EndpointSlice that resolves to a cloud metadata endpoint…

Vulnerability class: SSRF (Server-Side Request Forgery)

EPSS: 0.000 (9.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N.

Affected products

Red Hat Openshift Container Platform 4

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

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

Frequently asked questions

What is CVE-2026-42965?: CVE-2026-42965 is a high-severity vulnerability in Red Hat Openshift Container Platform 4, classified under Server-Side Request Forgery (SSRF). CVSS score: 7.7/10. Published 2026-05-29.
How severe is CVE-2026-42965?: High severity. CVSS v3 base score is 7.7 out of 10.