What is CVE-2025-13281?

CVE-2025-13281 is a medium-severity vulnerability in Kubernetes, classified under Server-Side Request Forgery (SSRF). CVSS score: 5.8/10. Published 2025-12-14.

How severe is CVE-2025-13281?

Medium severity. CVSS v3 base score is 5.8 out of 10.

SSRF in Kubernetes

CVE-2025-13281

A half-blind Server Side Request Forgery (SSRF) vulnerability exists in kube-controller-manager when using the in-tree Portworx StorageClass. This vulnerability allows authorized users to leak arbitrary information from unprotected endpoints in the control plane’s host network (including link-local or loopback services).

Vulnerability class: SSRF (Server-Side Request Forgery)

Published 2025-12-14 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.004 (30.4th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 30.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: -0.000

Affected products

Kubernetes — versions v1.30.0, v1.31.0, v1.32.0

Weakness classification (CWE)

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

References

github.com/kubernetes/kubernetes/issues/135525 (issue-tracking)
groups.google.com/g/kubernetes-security-announce/c/EORqZg0k1l4/m/TtD-q0v7AgAJ (mailing-list)
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2025-13281?: CVE-2025-13281 is a medium-severity vulnerability in Kubernetes, classified under Server-Side Request Forgery (SSRF). CVSS score: 5.8/10. Published 2025-12-14.
How severe is CVE-2025-13281?: Medium severity. CVSS v3 base score is 5.8 out of 10.