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veracodeVeracode Vulnerability DatabaseVERACODE:40188
HistoryApr 19, 2023 - 11:10 a.m.

HTTP Request Smuggling

2023-04-1911:10:06
Veracode Vulnerability Database
sca.analysiscenter.veracode.com
111
http request smuggling
vulnerability
guzzlehttp/psr7
messagetrait.php
header parsing
cache poisoning
phishing attacks
software

EPSS

0.003

Percentile

69.9%

guzzlehttp/psr7 is vulnerable to HTTP Request Smuggling. The vulnerability exists in assertHeader function of MessageTrait.php due to improper header parsing which allows an attacker to sneak in a newline (\n) into both the header name and value, resulting in HTTP cache poisoning and phishing attacks.