CVE-2026-118640

MediumCVSS 5.4/10Last modified Nov 3, 2026

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.

Metrics

CVSS 3.1 5.4/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Weakness enumeration

CWE-863

Affected software

Vendor	Product	Versions
n8n-io	n8n	< 1.123.85
n8n-io	n8n	>= 2.44.0, < 2.44.1
n8n-io	n8n	>= 2.0.0, < 2.43.5

References

Timeline

Published: Oct 28, 2026
Last modified: Nov 3, 2026
NVD status: Deferred

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