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CVE-2026-21877

🚨 CRITICAL

n8n is an open source workflow automation platform. In versions 0.121.2 and below, an authenticated attacker may be able to execute malicious code using the n8n service. This could result in full comp...

Published
Jan 08, 2026
Last Modified
Jan 08, 2026
Views
4
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Description

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n8n is an open source workflow automation platform. In versions 0.121.2 and below, an authenticated attacker may be able to execute malicious code using the n8n service. This could result in full compromise and can impact both self-hosted and n8n Cloud instances. This issue is fixed in version 1.121.3. Administrators can reduce exposure by disabling the Git node and limiting access for untrusted users, but upgrading to the latest version is recommended.

CVSS Scores

CVSS 3.1 9.9
9.9
CRITICAL
CVSS 2.0 9.9

References

github.com github.com

Additional Information

Source
security-advisories@github.com
State
Undergoing analysis

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