CVEvulnerability

CVE-2026-21877

9.9 CRITICAL Published 2026-01-08 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2026-01-08
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.9 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weaknesses
CWE-434, CWE-94

Description

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.

Affected configurations

• n8n n8n (>= 0.123.0 < 1.121.3)

Related

Weakness · CWE (2)

  • CWE-434 Unrestricted Upload of File with Dangerous Type weakness
  • CWE-94 Improper Control of Generation of Code weakness

References