CVE-2026-118646
Dashboard / Vulnerabilities / CVE-2026-118646
Summary: n8n before 1.123.85, 2.43.5, and 2.44.1 ReDoS via Read/Write Files Node
Details: 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.
References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/118xxx/CVE-2026-118646.json, https://github.com/n8n-io/n8n/security/advisories/GHSA-m7gv-mpg5-7c9v, https://nvd.nist.gov/vuln/detail/CVE-2026-118646, https://www.vulncheck.com/advisories/n8n-before-1.123.85-2.43.5-and-2.44.1-redos-via-read-write-files-node
Affected packages
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