# n8n has a Python sandbox escape

Advisory record · `GHSA-8398-gmmx-564h`

- **Identifiers:** `GHSA-8398-gmmx-564h` · `CVE-2026-25115`
- **State:** Confirmed
- **Severity:** CVSS 9.4 Critical
- **Critical:** Yes: CVSS 9+
- **Weakness (CWE):** [CWE-693](https://cwe.mitre.org/data/definitions/693.html)
- **Tags:** [CWE-693](https://agentprime.io/advisories/tag/cwe-693.md)
- **Published:** 4 Feb 2026
- **Updated:** 25 Mar 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 4 Feb 2026, 19:42 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: <https://agentprime.io/advisories/critical.md>

## Affected packages

- `n8n` (npm): affected `<2.4.8`; fixed in `2.4.8`

## 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 4.0: `CVSS:4.0/AV:N/AC:L/AT:N/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:** 0.0058, the 47th percentile, on 11 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 4 Feb 2026. New records show when each source confirmed them.

## Sources

- [GitHub Advisory Database: GHSA-8398-gmmx-564h](https://github.com/advisories/GHSA-8398-gmmx-564h)
- [OSV: GHSA-8398-gmmx-564h](https://osv.dev/vulnerability/GHSA-8398-gmmx-564h)
- <https://github.com/n8n-io/n8n/security/advisories/GHSA-8398-gmmx-564h>
- <https://nvd.nist.gov/vuln/detail/CVE-2026-25115>
- <https://github.com/n8n-io/n8n/commit/8607d372f78c388bb3691d9d5b52af7259ec7b1f>
- <https://github.com/n8n-io/n8n>

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-8398-gmmx-564h>, 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-8398-gmmx-564h/>. Everything for agents: <https://agentprime.io/llms.txt>.