Kubernetes kube-controller-manager up to 1.34.1 server-side request forgery

Summaryinfo

A vulnerability was found in Kubernetes kube-controller-manager up to 1.30.14/1.31.14/1.32.9/1.33.5/1.34.1 and classified as critical. Affected by this vulnerability is an unknown functionality of the component kube-controller-manager. The manipulation results in server-side request forgery. This vulnerability is known as CVE-2025-13281. It is possible to launch the attack remotely. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Kubernetes kube-controller-manager up to 1.30.14/1.31.14/1.32.9/1.33.5/1.34.1. It has been classified as problematic. Affected is an unknown code of the component kube-controller-manager. The manipulation with an unknown input leads to a server-side request forgery vulnerability. CWE is classifying the issue as CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

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).

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2025-13281. The exploitability is told to be difficult. It is possible to launch the attack remotely. The exploitation requires an enhanced level of successful authentication. There are neither technical details nor an exploit publicly available.

Upgrading to version 1.32.10, 1.33.6 or 1.34.2 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-203310). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

• Virtualization Software

Vendor

• Kubernetes

Name

• kube-controller-manager

Version

• 1.30.0
• 1.30.1
• 1.30.2
• 1.30.3
• 1.30.4
• 1.30.5
• 1.30.6
• 1.30.7
• 1.30.8
• 1.30.9
• 1.30.10
• 1.30.11
• 1.30.12
• 1.30.13
• 1.30.14
• 1.31.0
• 1.31.1
• 1.31.2
• 1.31.3
• 1.31.4
• 1.31.5
• 1.31.6
• 1.31.7
• 1.31.8
• 1.31.9
• 1.31.10
• 1.31.11
• 1.31.12
• 1.31.13
• 1.31.14
• 1.32.0
• 1.32.1
• 1.32.2
• 1.32.3
• 1.32.4
• 1.32.5
• 1.32.6
• 1.32.7
• 1.32.8
• 1.32.9
• 1.33.0
• 1.33.1
• 1.33.2
• 1.33.3
• 1.33.4
• 1.33.5
• 1.34.0
• 1.34.1

License

• open-source

CPE 2.3info

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CPE 2.2info

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VulDB is the best source for vulnerability data and more expert information about this specific topic.

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