BoianEduard/CVE-2021-40346

PoC

HTTP Request Smuggling

view exploit source poc_in_githubauthor BoianEduardpublished 2025-12-21catalog poc_in_github
01

exploited CVEs (1)

Known CVEs related to this entry.

IDseverity exploitable
CVE-2021-40346UShigh7.5Exploit
An integer overflow exists in HAProxy 2.0 through 2.5 in htx_add_header that can be exploited to perform an HTTP request smuggling attack, allowing an attacker to bypass all config…
scry

Working exploits like this target internet-facing systems. See what is exposed on your perimeter with a free passive scan.

Free scan