Not scored
CVE-2026-0863
Sandbox escape in n8n Python task runner allows for arbitrary code execution on the underlying host.
Vendor not yet named
Status
- Not in CISA KEV
- Vendor fix available
Exploit probabilityEPSSchecked 25 Oct
9.3%probability of exploitation in the next 30 days
Higher than 95% of scored CVEs
SeverityCVSS
–Not scored yet
Description NVD
Using string formatting and exception handling, an attacker may bypass n8n's python-task-executor sandbox restrictions and run arbitrary unrestricted Python code in the underlying operating system. The vulnerability can be exploited via the Code block by an authenticated user with basic permissions and can lead to a full n8n instance takeover on instances operating under "Internal" execution mode. If the instance is operating under the "External" execution mode (ex. n8n's official Docker image) arbitrary code execution occurs inside a Sidecar container and not the main node, which significantly reduces the vulnerability impact.
Coverage 3 articles · 3 outlets
See the full timelineShow as table
| Published (UTC) | Outlet | Headline |
|---|---|---|
| Wed 28 Jan · 13:30 UTC | The Hacker News | Two High-Severity n8n Flaws Allow Authenticated Remote Code Execution |
| Thu 29 Jan · 14:56 UTC | SecurityWeek | N8n Vulnerabilities Could Lead to Remote Code Execution |
| Thu 29 Jan · 22:36 UTC | Dark Reading | More Critical Flaws on n8n Could Compromise Customer Security |
- More Critical Flaws on n8n Could Compromise Customer SecurityDark Reading · mentions it in passing
- N8n Vulnerabilities Could Lead to Remote Code ExecutionSecurityWeek · mentions it in passing
- Two High-Severity n8n Flaws Allow Authenticated Remote Code ExecutionThe Hacker News · first in our coverage · mentions it in passing