What is CVE-2026-21893?

CVE-2026-21893 is a high-severity vulnerability in N8n, classified under Improper Input Validation. CVSS score: 7.2/10. Published 2026-02-04.

How severe is CVE-2026-21893?

High severity. CVSS v3 base score is 7.2 out of 10.

RCE in N8n

CVE-2026-21893

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.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.013 (68.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

N8n
N8n-io N8n — versions >= 0.187.0, < 1.120.3

Weakness classification (CWE)

References

security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
security-advisories@github.com (Patch, x_refsource_MISC)

Frequently asked questions

What is CVE-2026-21893?: CVE-2026-21893 is a high-severity vulnerability in N8n, classified under Improper Input Validation. CVSS score: 7.2/10. Published 2026-02-04.
How severe is CVE-2026-21893?: High severity. CVSS v3 base score is 7.2 out of 10.