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).
Published: 2025-12-14
Score: 5.8 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

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

Tue, 16 Dec 2025 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Moderate


Mon, 15 Dec 2025 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Mon, 15 Dec 2025 14:15:00 +0000

Type Values Removed Values Added
First Time appeared Kubernetes
Kubernetes kubernetes
Vendors & Products Kubernetes
Kubernetes kubernetes

Sun, 14 Dec 2025 22:30:00 +0000

Type Values Removed Values Added
References

Sun, 14 Dec 2025 21:30:00 +0000

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'}


Subscriptions

Kubernetes Kubernetes
cve-icon MITRE

Status: PUBLISHED

Assigner: kubernetes

Published:

Updated: 2025-12-15T16:26:59.485Z

Reserved: 2025-11-16T20:53:36.588Z

Link: CVE-2025-13281

cve-icon Vulnrichment

Updated: 2025-12-14T22:05:27.154Z

cve-icon NVD

Status : Deferred

Published: 2025-12-14T22:15:36.450

Modified: 2026-04-15T00:35:42.020

Link: CVE-2025-13281

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-12-14T21:27:34Z

Links: CVE-2025-13281 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2025-12-15T14:05:53Z

Weaknesses