What is GHSA-9w9c-v85p-45fq?

GHSA-9w9c-v85p-45fq is a security advisory published by GitHub Security Advisories with Medium severity. n8n before 1.123.85, 2.43.5, and 2.44.1 contains an authorization bypass vulnerability in Chat...

Which CVE IDs does GHSA-9w9c-v85p-45fq cover?

GHSA-9w9c-v85p-45fq covers the following CVE IDs: CVE-2026-118640. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-9w9c-v85p-45fq?

GHSA-9w9c-v85p-45fq has a CVSS v3 base score of 5.4, published by GitHub Security Advisories.

GHSA-9w9c-v85p-45fqMediumCVSS 5.4

n8n before 1.123.85, 2.43.5, and 2.44.1 contains an authorization bypass vulnerability in Chat...

Vendor

GitHub Security Advisories

Published

October 28, 2026

Last Modified

October 28, 2026

🔗 CVE IDs covered (1)

CVE-2026-118640 →

📋 Description

n8n before 1.123.85, 2.43.5, and 2.44.1 contains an authorization bypass vulnerability in Chat Hub that allows chat-only users to register restricted tool types. Users with the global:chatUser role can add and run tools through chat to execute sandboxed code, access permitted files, and use instance workflows, Data Tables, and agents.

🔗 References (4)

https://github.com/n8n-io/n8n/security/advisories/GHSA-43v8-hjhm-chjp
https://nvd.nist.gov/vuln/detail/CVE-2026-118640
https://www.vulncheck.com/advisories/n8n-before-1.123.85-2.43.5-and-2.44.1-chat-hub-authorization-bypass
https://github.com/advisories/GHSA-9w9c-v85p-45fq