Two High-Severity n8n Flaws Allow Authenticated Remote Code Execution
29.01.2026
7538
Researchers disclosed two n8n vulnerabilities that let authenticated users bypass JavaScript and Python sandboxes to run arbitrary code.
Two High-Severity n8n Flaws Allow Authenticated Remote Code Execution
Researchers just dropped a bombshell: two high-severity vulnerabilities in n8n, the popular workflow automation tool, let authenticated users bypass JavaScript and Python sandboxes to execute arbitrary code remotely. Yep, that's RCE with auth—so if you're running n8n, patch up ASAP.
The flaws, disclosed by researchers, allow attackers with authenticated access to n8n instances to break out of the sandbox protections designed to isolate code execution. This means they can run malicious scripts on the host system, potentially leading to full system compromise, data theft, or further network infiltration.
n8n is widely used in DevOps and cloud environments for automating tasks, so this isn't just a niche issue—it's a critical threat to any org leveraging automation pipelines. The vulnerabilities specifically target the JavaScript and Python execution environments within n8n, exploiting weaknesses in how these sandboxes handle user input.
- • CVE-2026-XXXXX: Allows bypass of JavaScript sandbox via crafted input in workflow nodes.
- • CVE-2026-XXXXY: Enables Python sandbox escape through improper validation in script execution.
- • Impact: Authenticated remote code execution (RCE), potentially leading to system takeover.
- • Affected versions: n8n versions prior to the latest patch; check your deployment.
The disclosure highlights the ongoing risks in workflow automation tools, where powerful capabilities can become attack vectors if not properly secured. Researchers urge users to update n8n to the latest version immediately and review access controls to limit authenticated user privileges.
This news drops as automation tools become more integral to tech stacks, making them prime targets for attackers looking to exploit high-permission environments. Stay vigilant, patch fast, and maybe rethink how much trust you're putting in those sandboxes.
#n8n#RCE vulnerabilities#workflow security#Security Sandbox#CVE vulnerabilities
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