Description
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 achieve arbitrary file read.
Module options
To display the available options, load the module within the Metasploit console and run the commands 'show options' or 'show advanced':
msf > use auxiliary/gather/ni8mare/cve_2026_21858msf undefined(cve_2026_21858) > show actions ...actions...msf undefined(cve_2026_21858) > set ACTION < action-name >msf undefined(cve_2026_21858) > show options ...show and set options...msf undefined(cve_2026_21858) > runPrioritise with Active Threat Intelligence
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