Description
n8n before 1.123.85, 2.43.5, and 2.44.1 contains a regular expression denial of service vulnerability that allows authenticated members to block the event loop via crafted glob patterns. Attackers who can create and run workflows can submit a wildcard-heavy File(s) Selector pattern causing exponential backtracking, making the UI, API, webhooks, and health checks unresponsive until restart.
Related CPE's
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References
CVSS impact metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
6.5 · Medium
Information
Source identifier
Vulnerability status
Deferred
Published
2026-10-28T19:17:32.760Z
2 hours agoLast modified
2026-10-28T19:17:32.880Z
2 hours ago