Wiz
Vulnerability DatabaseCVE-2026-21877

CVE-2026-21877: 
n8n vulnerability analysis and mitigation

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.

Source: NVD

Related n8n vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2026-21858CRITICAL10
  • n8nn8n
  • n8n
NoYesJan 08, 2026
CVE-2026-21877CRITICAL9.9
  • n8nn8n
  • n8n
NoYesJan 08, 2026
CVE-2025-68668CRITICAL9.9
  • NixOSNixOS
  • n8n
NoYesDec 26, 2025
CVE-2026-21894MEDIUM6.5
  • n8nn8n
  • n8n
NoYesJan 08, 2026
CVE-2025-68697MEDIUM5.4
  • NixOSNixOS
  • n8n
NoYesDec 26, 2025

Free Vulnerability Assessment

Benchmark your Cloud Security Posture

Evaluate your cloud security practices across 9 security domains to benchmark your risk level and identify gaps in your defenses.

Request assessment

Additional Wiz resources

Cloud Vulnerability DB

Cloud Vulnerability DB

A community-led vulnerabilities database

Cloud Threat Landscape

Cloud Threat Landscape

A threat intelligence database

PEACH

PEACH

A tenant isolation framework

Get a personalized demo

Ready to see Wiz in action?

"Best User Experience I have ever seen, provides full visibility to cloud workloads."
David EstlickCISO
"Wiz provides a single pane of glass to see what is going on in our cloud environments."
Adam FletcherChief Security Officer
"We know that if Wiz identifies something as critical, it actually is."
Greg PoniatowskiHead of Threat and Vulnerability Management
Get a demo