CVE-2026-49444 — Vulnerability in n8n — CVE Details

HIGH

n8n: Python sandbox escape

Published June 16, 2026Updated July 20, 2026Source: osv

Summary

## 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. This issue only affects instances where the Python Task Runner is enabled. ## Patches The issue has been fixed in n8n versions 1.123.48, 2.21.8, and 2.22.4. Users should upgrade to one of these versions or later to remediate the vulnerability. ## Workarounds If upgrading is not immediately possible, administrators should consider the following temporary mitigations: - Limit workflow creation and editing permissions to fully trusted users only. - Disable the Python Code node by adding `n8n-nodes-base.code` to the `NODES_EXCLUDE` environment variable, or disable the Python Task Runner entirely. These workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.

Advisory Timeline

First published June 16, 2026 (118 days ago).
Last revised July 20, 2026 — 34 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

npm

Update n8n to 2.22.4 or later

npm install n8n@2.22.4

npm

Update n8n to 1.123.48 or later

npm install n8n@1.123.48

npm

Update n8n to 2.21.8 or later

npm install n8n@2.21.8

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (3)

Affects 1 ecosystem: npm (1).

Package	Ecosystem	Affected	Fixed In
n8n	npm	All versions	2.22.4
n8n	npm	All versions	1.123.48
n8n	npm	All versions	2.21.8

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CWE-20
Improper Input ValidationMITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 8.5 score means for each attack dimension.

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

Low

Availability

None

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N

References

Frequently Asked Questions

What is CVE-2026-49444?: n8n: Python sandbox escape This vulnerability has been assigned a severity rating of HIGH (CVSS score: 8.5/10).
How do I check if my project is affected by CVE-2026-49444?: CVE-2026-49444 affects n8n. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2026-49444 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score

8.5

High exploitability or significant impact. Prioritize remediation within days.

Also Known As

GHSA-9pq8-m8gp-4p53

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