GHSA-mmgg-m5j7-f83h

Suggest an improvement
Source
https://github.com/advisories/GHSA-mmgg-m5j7-f83h
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/02/GHSA-mmgg-m5j7-f83h/GHSA-mmgg-m5j7-f83h.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-mmgg-m5j7-f83h
Aliases
Published
2026-02-25T21:22:39Z
Modified
2026-02-28T05:14:33.413499Z
Severity
  • 9.9 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
  • 7.1 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
n8n has Arbitrary File Read via Python Code Node Sandbox Escape
Details

Impact

An authenticated user with permission to create or modify workflows could use the Python Code node to escape the sandbox. The sandbox did not sufficiently restrict access to certain built-in Python objects, allowing an attacker to exfiltrate file contents or achieve RCE.

On instances using internal Task Runners (default runner mode), this could result in full compromise of the n8n host. On instances using external Task Runners, the attacker might gain access to or impact other task executed on the Task Runner.

  • Task Runners must be enabled using N8N_RUNNERS_ENABLED=true.

Patches

The issue has been fixed in n8n versions 2.10.1, 2.9.3, and 1.123.22. Users should upgrade to this version 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 Code node by adding n8n-nodes-base.code to the NODES_EXCLUDE environment variable.

These workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.

Database specific 
{
    "github_reviewed": true,
    "github_reviewed_at": "2026-02-25T21:22:39Z",
    "cwe_ids": [
        "CWE-497"
    ],
    "severity": "HIGH",
    "nvd_published_at": "2026-02-25T23:16:20Z"
}
References

Affected packages

npm / n8n

Package

Name
n8n
View open source insights on deps.dev
Purl
pkg:npm/n8n

Affected ranges

Type
SEMVER
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.123.22

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/02/GHSA-mmgg-m5j7-f83h/GHSA-mmgg-m5j7-f83h.json"

npm / n8n

Package

Name
n8n
View open source insights on deps.dev
Purl
pkg:npm/n8n

Affected ranges

Type
SEMVER
Events
Introduced
2.0.0
Fixed
2.9.3

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/02/GHSA-mmgg-m5j7-f83h/GHSA-mmgg-m5j7-f83h.json"

npm / n8n

Package

Name
n8n
View open source insights on deps.dev
Purl
pkg:npm/n8n

Affected ranges

Type
SEMVER
Events
Introduced
2.10.0
Fixed
2.10.1

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/02/GHSA-mmgg-m5j7-f83h/GHSA-mmgg-m5j7-f83h.json"