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...

n8n-cve-2026-21858

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

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...

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...

ROOT-OS-UBUNTU-2404-CVE-2025-21858 CVE-2025-21858 in linux - Patched by Root

Root has patched CVE-2025-21858 in the linux package for Root:Ubuntu:24.04. Multiple fixed versions available...

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...

Critical: Red Hat Security Advisory: kernel security, bug fix, and enhancement update

An update for kernel is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On. Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability...

MiracleLinux 8 : kernel-4.18.0-553.132.1.el8_10 (AXSA:2026-788:42)

The remote MiracleLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2026-788:42 advisory. kernel: geneve: Fix use-after-free in genevefinddev. CVE-2025-21858 kernel: smc: Fix use-after-free in tcpwritetimerhandler CVE-2023-53781 kernel: nb...

AlmaLinux 8 : kernel-rt (ALSA-2026:25120)

The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:25120 advisory. kernel: geneve: Fix use-after-free in genevefinddev. CVE-2025-21858 kernel: smc: Fix use-after-free in tcpwritetimerhandler CVE-2023-53781 kernel: nbd:...

RHEL 8 : kernel-rt (RHSA-2026:25120)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:25120 advisory. The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism...

Oracle Linux 8 : kernel (ELSA-2026-23258)

The remote Oracle Linux 8 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2026-23258 advisory. - smb: client: reject userspace cifs.spnego descriptions Paulo Alcantara RHEL-178938 CVE-2026-46243 - smb: client: fix OOB reads parsing symlink error response...

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...

Exploit for CVE-2026-21858

🔒 Ni8mare Scanner Ethical Security Scanner for CVE-2026-218...

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,...

CVE-2026-21858

creationtimestamp| type| source ---|---|--- 2026-01-07 12:48:00+00:00| seen| https://thehackernews.com/2026/01/critical-n8n-vulnerability-cvss-100.html 2026-01-07 15:20:10+00:00| seen| https://bsky.app/profile/cybersentinel404.bsky.social/post/3mbtrdz5mxv24 2026-01-07 15:20:49+00:00|...