n8n: Python sandbox escape
High8.5CVE-2026-49444 · Published Jun 16, 2026 · updated Jul 20, 2026
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| n8n npm | < 1.123.48 | 1.123.48 |
| >= 2.22.0, < 2.22.4 | 2.22.4 | |
| >= 2.0.0-rc.0, < 2.21.8 | 2.21.8 |
Details and references
## 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.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
- Severity from
- GitHub (reviewed advisory)
- Weakness
- CWE-20
- Also known as
- CVE-2026-49444
More n8n advisories
All n8n| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Jun 16 | n8n: Git Node Clone and Push Operations Bypass File Sandbox CVE-2026-49465Medium7.7fixed in 1.123.48, 2.21.8, 2.22.4 | Medium7.7 | 1.123.48, 2.21.8, 2.22.4 |
| Jun 16 | n8n: SQL Injection in Postgres v1/TimesclaeDB Nodes CVE-2026-54310Medium9.9fixed in 2.25.7, 2.26.2 | Medium9.9 | 2.25.7, 2.26.2 |
| Jun 16 | n8n: NoSQL Injection in MongoDB Node Find And Replace Operation CVE-2026-54313Medium7.7fixed in 2.24.0 | Medium7.7 | 2.24.0 |
| Jun 16 | n8n: Wrong OAuth Scope On Evaluations Test Run Creation Endpoint CVE-2026-56776Medium7.4fixed in 1.123.55, 2.25.7, 2.26.2 | Medium7.4 | 1.123.55, 2.25.7, 2.26.2 |
| Jun 16 | n8n: Missing Token Validation on Microsoft Agent 365 Trigger and Stripe Nodes CVE-2026-54308Medium7.2fixed in 2.25.7, 2.26.2 | Medium7.2 | 2.25.7, 2.26.2 |
| Jun 16 | n8n: Same-Origin XSS in Respond to Webhook Node CVE-2026-54301High7.6fixed in 1.123.55, 2.25.7, 2.26.2 | High7.6 | 1.123.55, 2.25.7, 2.26.2 |