CVE-2026-118646
n8n before 1.123.85, 2.43.5, and 2.44.1 contains a regular expression denial of service…
- Risk score
- 42/100
- CVSS
- 6.5 v3.1
- Exploit chance (30 days)
- 0.2%
- Published
- 28 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- 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, ma…
- Affected
- See advisory
- Fix
- Upgrade the product to 1.123.85, 2.43.5 or 2.44.1 (whichever matches your release line), or later.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 6.5 medium
References
Original 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.
Last activity 28 Oct 2026. Patch Forecast updates every hour.