Security Advisory

N8n Security Update Advisory (CVE-2026-21858)

  • Jan 09 2026
N8n Security Update Advisory (CVE-2026-21858)

Overview

 

We have released a security update to address a vulnerability in n8n. Users of affected products are advised to update to the latest version.
 

 

Affected Products

 

CVE-2026-21858

 

n8n Versions: 1.65.0 and above and 1.121.0 and below

 

 

Resolved Vulnerabilities

 

Unauthenticated file access vulnerability in n8n (CVE-2026-21858)

 

 

Vulnerability Patches

Vulnerability Patches have been made available in the latest update. Please follow the instructions on the Referenced Sites to update to the latest Vulnerability Patches version.

 

CVE-2026-21858

 

n8n Version: 1.121.0

 

 

References

 

[1] Unauthenticated File Access via Improper Webhook Request Handling
https://github.com/n8n-io/n8n/security/advisories/GHSA-v4pr-fm98-w9pg

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