PoC-CVE-2026-21858

PoC-CVE-2026-21858 n8n is an open source workflow automation platform. Versions starting with 1.65.0 and below 1.121.0 enable an attacker to access files on the underlying server through execution of certain form-based workflows. A vulnerable workflow could grant access to an unauthenticated remo...

Ni8mare

🔒 Ni8mare Scanner Ethical Security Scanner for CVE-2026-21858 Ni8mare Vulnerability "Knowledge is power, but only if shared responsibly." Comprehensive vulnerability detection tool for n8n workflow automation instances. Detects the critical CVE-2026-21858 vulnerability CVSS 10.0 without performin...

CVE-2026-21858-n8n-FullChain

🛡️ AI Security Tool Module n8n Full Chain CVE-2026-21858 + CVE-2025-68613 — "Ni8mare" Official Security Audit Module for AI Security Tool Ecosystem 🌐 Web Demo • 📚 Project Website • 💬 Community Chat Website Navigation: Home • Updates • Downloads • Modules 🧠 Conceptual Overview This module provides...

n8n-cve-2026-21858

n8n-cve-2026-21858 CVE-2026-21858 + CVE-2025-68613 — n8n unauthenticated file read to RCE exploit...

Exploit for Improper Input Validation in N8N

CVE-2026-21858 RCE PoC environment for n8n 1.120.4 with a F...

Exploit for Improper Input Validation in N8N

CVE-2026-21858 + CVE-2025-68613 - n8n Full Chain Unauthenti...

cve-2026-poc-collection

CVE-2026 PoC Collection Report Collection date: May 19, 2...

n8n arbitrary file read

This module exploits CVE-2026-21858, a critical unauthenticated remote code execution vulnerability in n8n workflow automation platform versions 1.65.0 through 1.120.x. The vulnerability, dubbed "Ni8mare", is a content-type confusion flaw in webhook request handling that allows attackers to achie...

Exploit for Improper Input Validation in N8N

🛡️ RulesGuard !Testshttps://github.com/NOTTIBOY137/RulesG...

Exploit for Improper Input Validation in N8N

CVE-2026-21858 n8n Workflow Automation Platform - Remote C...

CVE-2026-21858 n8n Vulnerable to Unauthenticated File Access via Improper Webhook Request Handling

n8n is an open source workflow automation platform. Versions starting with 1.65.0 and below 1.121.0 enable an attacker to access files on the underlying server through execution of certain form-based workflows. A vulnerable workflow could grant access to an unauthenticated remote attacker,...

CVE-2026-21858 n8n Vulnerable to Unauthenticated File Access via Improper Webhook Request Handling

n8n is an open source workflow automation platform. Versions starting with 1.65.0 and below 1.121.0 enable an attacker to access files on the underlying server through execution of certain form-based workflows. A vulnerable workflow could grant access to an unauthenticated remote attacker,...