# kube-controller-manager is vulnerable to half-blind Server Side Request Forgery through in-tree Portworx StorageClass

Advisory record · `GHSA-r6j8-c6r2-37rr`

- **Identifiers:** `GHSA-r6j8-c6r2-37rr` · `CVE-2025-13281` · `GO-2025-4240`
- **State:** Confirmed
- **Severity:** CVSS 5.8 Medium
- **Critical:** No
- **Weakness (CWE):** [CWE-918](https://cwe.mitre.org/data/definitions/918.html)
- **Tags:** [Server-side request forgery (SSRF)](https://agentprime.io/advisories/tag/ssrf.md)
- **Published:** 15 Dec 2025
- **Updated:** 10 Sept 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 15 Dec 2025, 00:30 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `k8s.io/kubernetes` (Go): affected `<1.32.10 || >=1.33.0-alpha.0, <1.33.6 || >=1.34.0-alpha.0, <1.34.2`; fixed in `1.32.10`, `1.33.6`, `1.34.2`

## Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

## Severity and exploitation

- 5.8 Medium, CVSS 3.1: `CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N`, from CNA (kubernetes)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0042, the 36th percentile, on 15 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 14:13 UTC: First seen by agentprime
- 31 Oct 2026, 14:13 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-r6j8-c6r2-37rr)

## Sources

- [GitHub Advisory Database: GHSA-r6j8-c6r2-37rr](https://github.com/advisories/GHSA-r6j8-c6r2-37rr)
- [OSV: GHSA-r6j8-c6r2-37rr](https://osv.dev/vulnerability/GHSA-r6j8-c6r2-37rr)
- <https://nvd.nist.gov/vuln/detail/CVE-2025-13281>
- <https://github.com/kubernetes/kubernetes/issues/135525>
- <https://github.com/kubernetes/kubernetes/commit/7506ce804c20696ba32cdb72126270ceaed06e24>
- <https://github.com/kubernetes/kubernetes/commit/97650c1c4fe15cbb7756ba95b3edc8a8665063ca>
- <https://github.com/kubernetes/kubernetes/commit/dbe17dfe7773563eac95534040f413ada6d2b421>
- <https://github.com/advisories/GHSA-r6j8-c6r2-37rr>
- <https://github.com/kubernetes/kubernetes>
- <https://groups.google.com/g/kubernetes-security-announce/c/EORqZg0k1l4/m/TtD-q0v7AgAJ>
- <http://www.openwall.com/lists/oss-security/2025/12/01/4>

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.

## Check whether this affects you

A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: <https://agentprime.io/mcp.md>
- In a browser: <https://agentprime.io/check/> reads your lockfile in the browser, never uploading it.
- Whether it touches your code, with file and line: the Claude Code plugin, <https://agentprime.io/plugin.md>
- As JSON: <https://api.agentprime.io/v1/advisories/GHSA-r6j8-c6r2-37rr>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

---

The web page: <https://agentprime.io/advisories/GHSA-r6j8-c6r2-37rr/>. Everything for agents: <https://agentprime.io/llms.txt>.