All vulnerabilities
CVE-2026-118646GHSA-m7gv-mpg5-7c9v

n8n before 1.123.85, 2.43.5, and 2.44.1 ReDoS via Read/Write Files Node

n8n-io n8nFrameworks
Open in ThreatlineRecord JSON
CVSS
7.1High
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)No scoreNo FIRST EPSS score in this snapshot yet
Fixed in1.123.85Also 2.44.1, 2.43.5CVE List
Published28 Oct 2026Updated 28 Oct 2026CVE List

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

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.

Text from CVE List

Affected versions 6

  • n8naffected: all versions before 1.123.85CVE List
  • n8nunaffected: 1.123.85CVE List
  • n8naffected: 2.44.0 before 2.44.1CVE List
  • n8nunaffected: 2.44.1CVE List
  • n8naffected: 2.0.0 before 2.43.5CVE List
  • n8nunaffected: 2.43.5CVE List

References 2