Detections
Analytics

SCA: security update for n8n (GHSA-qrx8-25qr-5r7v)

high Tenable Cloud Security Plugin ID 443331

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, when @n8n/mcp-browser is
 run in HTTP transport mode, the MCP endpoint accepts session initialization and tool invocation requests
 without any authentication. Any network-reachable client, or any website visited by the user, can
 establish an MCP session and invoke browser-control tools. Where the n8n AI Browser Bridge extension is
 installed and a browser connection is active, an unauthenticated caller can access browser-control
 capabilities including navigation, JavaScript evaluation, and cookie and storage access against the user's
 real browser profile. This issue only affects instances where @n8n/mcp-browser is run with the HTTP
 transport (--transport http). This vulnerability is fixed in 2.25.7 and 2.26.2. (CVE-2026-54309)

Solution

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

See Also

https://github.com/advisories/GHSA-qrx8-25qr-5r7v

Plugin Details

Severity: High

ID: 443331

Version: Revision 1.6

Type: Local

Family: SCA Checks

Published: 6/17/2026

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 94.24

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 9.7

Temporal Score: 7.2

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

CVSS Score Source: CVE-2026-54309

CVSS v3

Risk Factor: Critical

Base Score: 10

Temporal Score: 8.7

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

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

CVSS v4

Risk Factor: High

Base Score: 8.8

Threat Score: 6.8

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:L/SC:N/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-2026-54309

cwe: CWE-306