# n8n has Arbitrary Command Execution via File Write and Git Operations

Advisory record · `GHSA-x2mw-7j39-93xq`

- **Identifiers:** `GHSA-x2mw-7j39-93xq` · `CVE-2026-27498`
- **State:** Confirmed
- **Severity:** CVSS 9.0 Critical
- **Critical:** Yes: CVSS 9+
- **Weakness (CWE):** [CWE-94](https://cwe.mitre.org/data/definitions/94.html)
- **Tags:** [Code injection](https://agentprime.io/advisories/tag/code-injection.md)
- **Published:** 25 Feb 2026
- **Updated:** 28 Feb 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 25 Feb 2026, 21:54 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Critical

Critical, because:

- CVSS score 9.0: 9.0 or more.

How we decide what’s critical: <https://agentprime.io/advisories/critical.md>

## Affected packages

- `n8n` (npm): affected `<1.123.8 || >=2.0.0, <2.2.0`; fixed in `1.123.8`, `2.2.0`

## 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

- 9.0 Critical, CVSS 4.0: `CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H`, from CNA (GitHub_M)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0082, the 57th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the GitHub Advisory Database, published 25 Feb 2026. New records show when each source confirmed them.

## Sources

- [GitHub Advisory Database: GHSA-x2mw-7j39-93xq](https://github.com/advisories/GHSA-x2mw-7j39-93xq)
- [OSV: GHSA-x2mw-7j39-93xq](https://osv.dev/vulnerability/GHSA-x2mw-7j39-93xq)
- <https://github.com/n8n-io/n8n/security/advisories/GHSA-x2mw-7j39-93xq>
- <https://nvd.nist.gov/vuln/detail/CVE-2026-27498>
- <https://github.com/n8n-io/n8n/commit/97365caf253978ba8e46d7bc53fa7ac3b6f67b32>
- <https://github.com/n8n-io/n8n/commit/e22acaab3dcb2004e5fe0bf9ef2db975bde61866>
- <https://github.com/n8n-io/n8n>
- <https://github.com/n8n-io/n8n/releases/tag/n8n@1.123.8>
- <https://github.com/n8n-io/n8n/releases/tag/n8n@2.2.0>

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-x2mw-7j39-93xq>, 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-x2mw-7j39-93xq/>. Everything for agents: <https://agentprime.io/llms.txt>.