# KubeVirt virt-api port-forward handler vulnerable to SSRF via guest-controlled VMI IP address

Advisory record · `GHSA-cgm6-wvp9-4g5h`

- **Identifiers:** `GHSA-cgm6-wvp9-4g5h` · `CVE-2026-13318`
- **State:** Confirmed
- **Severity:** CVSS 6.4 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:** 26 Jun 2026
- **Updated:** 4 Nov 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 26 Jun 2026, 00:32 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `kubevirt.io/kubevirt` (Go): affected `<1.10.0-rc.0`; fixed in `1.10.0-rc.0`

## 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

- 6.4 Medium, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N`, from CNA (redhat)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0024, the 14th percentile, on 13 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 4 Nov 2026, 17:30 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-cgm6-wvp9-4g5h)

## Sources

- [GitHub Advisory Database: GHSA-cgm6-wvp9-4g5h](https://github.com/advisories/GHSA-cgm6-wvp9-4g5h)
- [OSV: GHSA-cgm6-wvp9-4g5h](https://osv.dev/vulnerability/GHSA-cgm6-wvp9-4g5h)
- <https://nvd.nist.gov/vuln/detail/CVE-2026-13318>
- <https://github.com/kubevirt/kubevirt/pull/18753>
- <https://github.com/kubevirt/kubevirt/commit/0f5fef3309417f454565412f56f571f48358853f>
- <https://github.com/kubevirt/kubevirt/commit/df419a0f20aa7ddc9f4512431c3aed9a642ad1e1>
- <https://access.redhat.com/security/cve/CVE-2026-13318>
- <https://bugzilla.redhat.com/show_bug.cgi?id=2492659>
- <https://github.com/kubevirt/kubevirt>
- <https://github.com/kubevirt/kubevirt/releases/tag/v1.10.0-rc.0>

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-cgm6-wvp9-4g5h>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

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The web page: <https://agentprime.io/advisories/GHSA-cgm6-wvp9-4g5h/>. Everything for agents: <https://agentprime.io/llms.txt>.