CVE-2025-13281: Portworx Half-Blind SSRF in kube-controller-manager

Severity: medium (CVSS 5.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-12-14 · updated 2026-10-14
Weakness: CWE-918

Description

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).

Affected products

Kubernetes: from v1.30.0 through v1.30.14; from v1.31.0 through v1.31.14; from v1.32.0 through v1.32.9; from v1.33.0 through v1.33.5; from v1.34.0 through v1.34.1

References

https://github.com/kubernetes/kubernetes/issues/135525
https://groups.google.com/g/kubernetes-security-announce/c/EORqZg0k1l4/m/TtD-q0v7AgAJ
http://www.openwall.com/lists/oss-security/2025/12/01/4

Get alerted when CVE-2025-13281 or the next vulnerability affects your stack