HomeCVE-2026-21877

CVE-2026-21877

CRITICAL
9.9CVSS
Published: 2026-01-08
Updated: 2026-01-08
AI Analysis

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.

CVSS Metrics

Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack Vector
network
Complexity
low
Privileges
low
User Action
none
Scope
changed
Confidentiality
high
Integrity
high
Availability
high
Weaknesses
CWE-94CWE-434

Metadata

Primary Vendor
UNKNOWN
Published
1/8/2026
Last Modified
1/8/2026
Source
NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

No affected products information available.

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CVE-CVE-2026-21877 | CRITICAL Severity | CVEDatabase.com | CVEDatabase.com