High (AgentArmorHQ estimate)Sandbox escapeJune 16, 2026

n8n: Python sandbox escape

Product: n8n
CVE: CVE-2026-49444
Affected: n8n < 1.123.48, 2.0.0-rc.0 to 2.21.8, and 2.22.0 to 2.22.4
Fixed in: 1.123.48

Last verified against sources: October 26, 2026

Am I affected?

n8n: affected n8n < 1.123.48, 2.0.0-rc.0 to 2.21.8, and 2.22.0 to 2.22.4. Fixed in 1.123.48.

Check your version: run npm ls n8n. Versions < 1.123.48 of n8n are affected. [1]

What to do now

Upgrade to the fixed version: run npm install n8n@1.123.48 (first patched version 1.123.48). [1]
Upgrade to n8n 1.123.48, 2.21.8, or 2.22.4, or later. [1]
Limit workflow creation and editing permissions to fully trusted users only. [1]
Disable the Python Code node by adding n8n-nodes-base.code to the NODES_EXCLUDE environment variable, or disable the Python Task Runner entirely. [1]

General practice, not from the source: if the affected software could read tokens or credentials, rotate them after upgrading; pin versions and review changes before updating tools your agents run.

Discuss this incident

What happened

An authenticated user with permission to create or modify workflows containing a Python Code Node could escape the sandbox. [1]
This issue only affects instances where the Python Task Runner is enabled. [1]

Impact

An authenticated user with permission to create or modify workflows containing a Python Code Node could escape the sandbox and achieve arbitrary code execution on the task runner container. [1]

What was done

The issue has been fixed in n8n versions 1.123.48, 2.21.8, and 2.22.4. [1]
Users should upgrade to one of these versions or later to remediate the vulnerability. [1]

Sources

GHSA-9pq8-m8gp-4p53 — GitHub Advisory Database

Every statement above was checked against these sources before publishing. Spotted an error? Tell us and we will correct it with a dated note.

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Brief

[CVE-2026-49444] n8n: Python sandbox escape
Product: n8n | Affected: n8n < 1.123.48, 2.0.0-rc.0 to 2.21.8, and 2.22.0 to 2.22.4 | Fixed in: 1.123.48
Summary: An authenticated user with permission to create or modify workflows containing a Python Code Node could escape the sandbox.
Source & remediation on AgentArmorHQ: https://agentarmorhq.com/incidents/2026/06/cve-2026-49444-n8n

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