VYPR
High severity8.1NVD Advisory· Published Jul 19, 2016· Updated Jun 17, 2026

CVE-2016-5385

CVE-2016-5385

Description

PHP through 7.0.8 does not attempt to address RFC 3875 section 4.1.18 namespace conflicts and therefore does not protect applications from the presence of untrusted client data in the HTTP_PROXY environment variable, which might allow remote attackers to redirect an application's outbound HTTP traffic to an arbitrary proxy server via a crafted Proxy header in an HTTP request, as demonstrated by (1) an application that makes a getenv('HTTP_PROXY') call or (2) a CGI configuration of PHP, aka an "httpoxy" issue.

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Affected products

25

Patches

Vulnerability mechanics

References

25

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