CVE-2026-118646
n8n before 1.123.85, 2.43.5, and 2.44.1 ReDoS via Read/Write Files Node
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-1333 |
| Vendor | n8n-io |
| Product | n8n |
| Published | Oct 28, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
n8n-io / n8n
0 < 1.123.85
n8n-io / n8n
2.44.0 < 2.44.1
n8n-io / n8n
2.0.0 < 2.43.5
References
Credits
🔍 Masofgon