Dashboard / CVE-2026-118640

CVE-2026-118640

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 61/100
Published: 2026-10-28 Modified: 2026-10-28 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: None
AT: None
VC: Low
VI: Low
VA: None

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.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
n8n-io n8n 0 < 1.123.85

References & Advisories (2)

Bug Bounty Relevance

61 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

5.3 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

EPSS — Exploitation Probability

0.19%
Raw Score 0.001890
Percentile 8.5%
Date 2026-10-29

Intelligence Sources

mitre ref →
nvd ref →

External Links