# Kata Container to Guest micro VM privilege escalation Advisory record · `GHSA-wwj6-vghv-5p64` - **Identifiers:** `GHSA-wwj6-vghv-5p64` · `CVE-2026-24834` · `GO-2026-4517` - **State:** Confirmed - **Severity:** CVSS 9.4 Critical - **Critical:** Yes: CVSS 9+ - **Weakness (CWE):** [CWE-281](https://cwe.mitre.org/data/definitions/281.html) · [CWE-732](https://cwe.mitre.org/data/definitions/732.html) - **Tags:** [Broken access control](https://agentprime.io/advisories/tag/access-control.md) · [CWE-281](https://agentprime.io/advisories/tag/cwe-281.md) - **Published:** 19 Feb 2026 - **Updated:** 10 Sept 2026 - **Reviewed by a person:** No Published by the GitHub Advisory Database at 19 Feb 2026, 15:25 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. ## Critical Critical, because: - CVSS score 9.4: 9.0 or more. How we decide what’s critical: ## Affected packages - `github.com/kata-containers/kata-containers/src/runtime` (Go): affected `<0.0.0-20260219090056-6a672503973b`; fixed in `0.0.0-20260219090056-6a672503973b` ## Machine-written summary Summary written by Claude Haiku from the source advisory. Not reviewed by a person. > Kata Containers runtime (Go module github.com/kata-containers/kata-containers/src/runtime) versions up to 0.0.0-20260219090056-6a672503973b are affected. A user with a container that has CAP_MKNOD can write to the guest micro VM's root filesystem through the read-only-intended pmem device, which allows arbitrary code execution as root inside the VM, though the source says the host is not affected. The fixed version is listed as 0.0.0-20260219090056-6a672503973b, so upgrade to that version; the source gives no other workaround. Written 1 Nov 2026. ## 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 - 9.4 Critical, CVSS 3.1: `CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H`, from CNA (GitHub_M) - **CISA KEV:** Not listed. - **EPSS:** 0.0024, the 15th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days. ## Timeline - 31 Oct 2026, 14:14 UTC: First seen by agentprime - 31 Oct 2026, 14:14 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-wwj6-vghv-5p64) ## Sources - [GitHub Advisory Database: GHSA-wwj6-vghv-5p64](https://github.com/advisories/GHSA-wwj6-vghv-5p64) - [OSV: GHSA-wwj6-vghv-5p64](https://osv.dev/vulnerability/GHSA-wwj6-vghv-5p64) - - - - - - - - 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 (), 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: - In a browser: reads your lockfile in the browser, never uploading it. - Whether it touches your code, with file and line: the Claude Code plugin, - As JSON: , or `POST https://api.agentprime.io/v1/match` with your packages () --- The web page: . Everything for agents: .