CVE-2025-13281

Portworx Half-Blind SSRF in kube-controller-manager

Published Dec 14, 2025 CVSS 3.1 · 5.8 Medium EPSS < 1% KEV · Not listed
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).

Remediation

Vendor Solution

To mitigate this vulnerability, upgrade Kubernetes or enable the CSIMigrationPortworx feature gate.

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-r6j8-c6r2-37rr kube-controller-manager is vulnerable to half-blind Server Side Request Forgery through in-tree Portworx StorageClass
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Kubernetes
Kubernetes kubernetes
Vendors & Products Kubernetes
Kubernetes kubernetes
Type Values Removed Values Added
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).
Title Portworx Half-Blind SSRF in kube-controller-manager
Weaknesses CWE-918
References
Metrics cvssV3_1

{'score': 5.8, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
kubernetes
Published
Updated
Dec 15, 2025, 4:26 PM
Reserved
Nov 16, 2025, 8:53 PM
Status
Deferred
Published
Dec 14, 2025, 10:15 PM
Modified
Oct 14, 2026, 1:10 PM
Severity
Moderate
Public date
Dec 14, 2025, 9:27 PM