# CVE-2026-86081

## Summary

- **CVE ID:** CVE-2026-86081
- **Severity:** HIGH
- **CVSS Score:** 7.1 (CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N)
- **CWE:** CWE-1333
- **Published:** Sep 8, 2026
- **Last Modified:** Sep 9, 2026

## Description

n8n is an open source workflow automation platform. Prior to 1.123.76, 2.37.7, and 2.38.2, the Git node clone operation matched an attacker-controlled destination path against the default N8N_BLOCK_FILE_PATTERNS regular expression. The pattern ^(./).git(/.)$ allowed catastrophic backtracking and ran synchronously in the main n8n process. An authenticated workflow editor could therefore freeze the instance with one workflow execution; the affected default is declared in packages/@n8n/config/src/configs/security.config.ts. This issue is fixed in versions 1.123.76, 2.37.7 and 2.38.2.

## Affected Products

- n8n-io — n8n (>= 2.38.0, < 2.38.2)
- n8n-io — n8n (>= 2.0.0, < 2.37.7)
- n8n-io — n8n (< 1.123.76)

## References

- [CNA](https://github.com/n8n-io/n8n/security/advisories/GHSA-j535-v25q-vx3q)
- [CNA](https://github.com/n8n-io/n8n/releases/tag/n8n@1.123.76)
- [CNA](https://github.com/n8n-io/n8n/releases/tag/n8n@2.37.7)
- [CNA](https://github.com/n8n-io/n8n/releases/tag/n8n@2.38.2)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.32%
- **EPSS Percentile:** 25.0

---
_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._