NGINX before 1.17.7, with certain error_page configurations, allows HTTP request smuggling, as demonstrated by the ability of an attacker to read unauthorized web pages in environments where NGINX is being fronted by a load balancer.

Published: 2020-01-09

CVSS: 5.3

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Download CVE-2019-20372 POC (Proof-of-Concept) here:

Tip: Download official Tor Browser at https://www.torproject.org/download/ to access .onion links.

https://connollyfinan.ie/poc-689-cve-2017-5638/

https://connollyfinan.ie/poc-370-cve-2024-49113/

https://connollyfinan.ie/poc-421-cve-2022-31160/

https://connollyfinan.ie/poc-46-cve-2025-50165/