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Vulnerability record · CVE-2026-21893 · published 4 February 2026

CVE-2026-21893: N8n improper input validation vulnerability

N8n · N8n

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.

9.4 CVSS 4.0 Critical EPSS 1.4% · top 28.1% CWE-20 · Improper input validationCWE-78 · OS command injection
9.4CVSS 4.0 base score
1.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/n8n-io/n8n/commit/ae0669a736cc496beeb296e115267862727ae838 Patch
https://github.com/n8n-io/n8n/security/advisories/GHSA-7c4h-vh2m-743m Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-21893), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.