CVE-2026-21893 n8n Vulnerable to Command Injection in Community Package Installation

What is CVE-2026-21893?

CVE-2026-21893 is a critical command injection vulnerability in N8n N8n, published on 4 Feb 2026. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

n8n is an open source workflow automation platform. From version 0.187.0 to before 1.120.3, a command injection vulnerability was identified in n8n’s community package installation functionality. The issue allowed authenticated users with administrative permissions to execute arbitrary system commands on the n8n host under specific conditions. This issue has been patched in version 1.120.3.

Weakness: CWE-78, CWE-20

Which versions are affected by CVE-2026-21893?

2 open source packages ship an affected version, including n8n. It affects 1 product.

Products include N8n N8n.

How do I fix CVE-2026-21893?

Upgrade n8n to 1.120.3 or later.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2026-21893 being exploited?

There is no known exploitation of CVE-2026-21893 in the wild and no public exploit code.

Other vulnerabilities in N8n N8n

• CVE-2025-68613 n8n Improper Control of Dynamically-Managed Code Resources Exploited Critical 10.0
• CVE-2026-21877 n8n is vulnerable to Remote Code Execution via Arbitrary File Write Critical 10.0
• CVE-2026-21858 n8n Vulnerable to Unauthenticated File Access via Improper Webhook Request Handling Critical 10.0
• CVE-2026-1470 n8n Unsafe Workflow Expression Evaluation Allows Remote Code Execution Critical 9.9
• CVE-2025-68668 n8n Vulnerable to Arbitrary Command Execution in Pyodide based Python Code Node Critical 9.9

All N8n N8n vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-7c4h-vh2m-743m.