Detections
Analytics

N8n < 1.121.3 Arbitrary File Write

critical Web App Scanning Plugin ID 115104

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Synopsis

N8n < 1.121.3 Arbitrary File Write

Description

According to its banner, the version of n8n running on the remote host is after 0.123.0 and before 1.121.3. It is, therefore, affected by an authenticated arbitrary file write.

Note that the scanner has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade to n8n version 1.121.3 or later.

See Also

https://docs.n8n.io/release-notes/1-x/

https://github.com/n8n-io/n8n/security/advisories/GHSA-v364-rw7m-3263

Plugin Details

Severity: Critical

ID: 115104

Type: remote

Published: 1/8/2026

Updated: 1/8/2026

Scan Template: api, basic, full, pci, scan

Risk Information

VPR

Risk Factor: Critical

Score: 10.0

CVSS v2

Risk Factor: High

Base Score: 9

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C

CVSS Score Source: CVE-2026-21877

CVSS v3

Risk Factor: Critical

Base Score: 9.9

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CVSS Score Source: CVE-2026-21877

Vulnerability Information

CPE: cpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:*

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 1/5/2026

Reference Information

CVE: CVE-2026-21877