Description

n8n is an open source workflow automation platform. Versions starting with 1.65.0 and below 1.121.0 enable an attacker to access files on the underlying server through execution of certain form-based workflows. A vulnerable workflow could grant access to an unauthenticated remote attacker, resulting in exposure of sensitive information stored on the system and may enable further compromise depending on deployment configuration and workflow usage. This issue is fixed in version 1.121.0.

INFO

Published Date :

2026-01-07T23:57:52.079Z

Last Modified :

2026-01-12T18:37:27.893Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-21858 vulnerability.

Vendors Products
N8n
  • N8n
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-21858.

URL Resource
https://github.com/n8n-io/n8n/security/advisories/GHSA-v4pr-fm98-w9pg cve-icon cve-icon
https://www.cyera.com/research-labs/ni8mare-unauthenticated-remote-code-execution-in-n8n-cve-2026-21858 cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact