[HIGH] HTTP Proxy header vulnerability

PKSA-stmn-hvzq-wph6 CVE-2016-5385 GHSA-m6ch-gg5f-wxx3

Affected package: guzzlehttp/guzzle

Affected version: >=6,<6.2.1|>=4.0.0-rc2,<4.2.4|>=5,<5.3.1

Reported by:
GitHub, FriendsOfPHP/security-advisories