Detections
Analytics

SCA: security update for n8n (GHSA-q4fm-pjq6-m63g)

medium Tenable Self-Hosted Container Security Plugin ID 439345

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - n8n before 1.123.25 (1.x) and before 2.11.2 (2.x), with the fix also included in 2.12.0, contains a stored
 cross-site scripting vulnerability in the Form Trigger node's CSS sanitization that allows authenticated
 users to inject malicious scripts. Attackers with workflow creation permissions can inject XSS payloads
 that execute persistently for all form visitors, enabling form hijacking and phishing attacks.
 (CVE-2026-56358)

Solution

Update the n8n library and its related packages to version 1.123.25 or later.

See Also

https://github.com/advisories/GHSA-q4fm-pjq6-m63g

Plugin Details

Severity: Medium

ID: 439345

Version: Revision 1.5

Type: Local

Family: SCA Checks

Published: 3/27/2026

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 2.3

Percentile: 9.5

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.1

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

CVSS Score Source: CVE-2026-56358

CVSS v3

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4.7

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: Medium

Base Score: 5.1

Threat Score: 1.2

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 3/27/2026

Vulnerability Publication Date: 3/27/2026

Reference Information

CVE: CVE-2026-56358

cwe: CWE-79