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  5. CVE-2025-13281

CVE-2025-13281: kube-controller-manager is vulnerable to half-blind Server Side Request Forgery through in-tree Portworx StorageClass

December 15, 2025 (updated December 20, 2025)

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).

References

  • github.com/advisories/GHSA-r6j8-c6r2-37rr
  • github.com/kubernetes/kubernetes
  • github.com/kubernetes/kubernetes/commit/7506ce804c20696ba32cdb72126270ceaed06e24
  • github.com/kubernetes/kubernetes/commit/97650c1c4fe15cbb7756ba95b3edc8a8665063ca
  • github.com/kubernetes/kubernetes/commit/dbe17dfe7773563eac95534040f413ada6d2b421
  • github.com/kubernetes/kubernetes/issues/135525
  • groups.google.com/g/kubernetes-security-announce/c/EORqZg0k1l4/m/TtD-q0v7AgAJ
  • nvd.nist.gov/vuln/detail/CVE-2025-13281

Code Behaviors & Features

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Affected versions

All versions before 1.32.10, all versions starting from 1.33.0-alpha.0 before 1.33.6, all versions starting from 1.34.0-alpha.0 before 1.34.2

Fixed versions

  • 1.32.10
  • 1.33.6
  • 1.34.2

Solution

Upgrade to versions 1.32.10, 1.33.6, 1.34.2 or above.

Impact 5.8 MEDIUM

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N

Learn more about CVSS

Weakness

  • CWE-918: Server-Side Request Forgery (SSRF)

Source file

go/k8s.io/kubernetes/CVE-2025-13281.yml

Spotted a mistake? Edit the file on GitLab.

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