Detections
Analytics

SCA: security update for n8n (GHSA-9c38-2mcm-q7f7)

medium Tenable Self-Hosted Container Security Plugin ID 443296

Description

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

 - n8n is an open source workflow automation platform. Prior to 2.25.7 and 2.26.2, an authenticated user with
 permission to create or modify workflows could pollute the sandbox used by the Merge node's SQL Query
 mode. Because the sandbox context was cached and reused across all workflow executions on the instance,
 prototype mutations introduced by one user's workflow persist into subsequent Merge SQL executions
 belonging to other users or projects. This allowed a low-privileged attacker to intercept workflow data
 processed by other users on the same instance. This issue only affects multi-user n8n instances where more
 than one user has permission to create and execute workflows containing the Merge node in SQL Query mode.
 This vulnerability is fixed in 2.25.7 and 2.26.2. (CVE-2026-54311)

Solution

Update the n8n library and its related packages to version 2.25.7 or later.

See Also

https://github.com/advisories/GHSA-9c38-2mcm-q7f7

Plugin Details

Severity: Medium

ID: 443296

Version: Revision 1.5

Type: Local

Family: SCA Checks

Published: 6/16/2026

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3.3

Percentile: 51.26

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2026-54311

CVSS v3

Risk Factor: High

Base Score: 7.7

Temporal Score: 6.7

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

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

CVSS v4

Risk Factor: Medium

Base Score: 6

Threat Score: 2.3

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 6/16/2026

Vulnerability Publication Date: 6/16/2026

Reference Information

CVE: CVE-2026-54311

cwe: CWE-488