Security researchers Dor Attias and Ofek Itach demonstrate a critical CVSS 10.0 n8n vulnerability (CVE-2026-21858). Watch the full RCE exploit demo using type confusion to bypass authentication and read sensitive local files.
// Dor Attias SOCIAL //
LinkedIn: / dor-attias-740758155
// Ofek Itach SOCIAL //
LinkedIn: / ofek-it
// N8N Hack Blog
https://www.cyera.com/research-labs/ni8mare-unauthenticated-remote-code-execution-in-n8n-cve-2026-21858
// Cyera Blog //
https://www.cyera.com/blog
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0:00 – Coming up
0:56 – n8n vulnerability explained
02:33 – n8n hacking demo // How the vulnerability works
09:13 – How bad is it?
11:51 – Vulnerability summary
13:28 – More explained on Cyera blog // Webhooks
16:59 – Webhooks explained
18:09 – Formidable
19:18 – Formidable explained
20:01 – Handling uploaded files in n8n
22:32 – The form webhook node
24:28 – How to exploit
25:54 – Exploit summary
26:46 – How to mitigate
27:37 – How to become a security researcher
32:36 – Conclusion
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Disclaimer: This video is for educational purposes only.
#n8n #ni8mare #rce
