MEDIUMCVSS v3.1 5.4Vulnerability

CVE-2026-118640

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.

Properties

Severity
MEDIUM
Nvd fetched at
2026-10-28T19:43:42.952230+00:00
Cvss severity
MEDIUM
Cvss score
5.4
Retrieved at
2026-10-28T19:44:28+00:00
Score
5.4
Cvss version
3.1
Last source
NVD
Cve id
CVE-2026-118640
Cvss vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
First seen by Signal
2026-10-28T19:44:28+00:00
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Published at
2026-10-28T19:17:31.707
Last modified
2026-10-28T19:17:31.840

Related Entities (1)

HAS_WEAKNESS (1)

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CVE-2026-118640 (CVSS v3.1 5.4) — Ninja Signal Threat Intelligence | Ninja Signal