n8n is an open source workflow automation platform. Prior to 1.123.48, 2.21.8, and 2.22.4, 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 vulnerability is fixed in 1.123.48, 2.21.8, and 2.22.4.
https://github.com/n8n-io/n8n/security/advisories/GHSA-9pq8-m8gp-4p53
Published: 2026-06-23
Updated: 2026-06-26
Base Score: 7.5
Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:P/A:N
Severity: High
Base Score: 8.5
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
Severity: High
Base Score: 7.1
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
Severity: High
EPSS: 0.00064