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.
Metrics
Affected Vendors & Products
Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Wed, 28 Oct 2026 19:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | n8n before 1.123.85, 2.43.5, and 2.44.1 ReDoS via Read/Write Files Node | |
| First Time appeared |
N8n
N8n n8n |
|
| Weaknesses | CWE-1333 | |
| CPEs | cpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:* | |
| Vendors & Products |
N8n
N8n n8n |
|
| References |
| |
| Metrics |
cvssV3_1
|
Projects
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-10-28T18:59:45.637Z
Reserved: 2026-10-28T17:24:54.846Z
Link: CVE-2026-118646
No data.
Status : Deferred
Published: 2026-10-28T19:17:32.760
Modified: 2026-10-28T19:17:32.880
Link: CVE-2026-118646
No data.
OpenCVE Enrichment
Updated: 2026-10-28T21:00:23Z
Weaknesses