Loading vulnerability details…
CVSS v3.1
N/A
EPSS
6.69%
Published
Jul 7, 2011
Modified
Apr 28, 2026
Public PoC / Exploit (1)
All weaponized →Links to public security research (Exploit-DB, Nuclei, Trickest, GitHub) for defensive use only.
Description
Apache HttpClient 4.x before 4.1.1 in Apache HttpComponents, when used with an authenticating proxy server, sends the Proxy-Authorization header to the origin server, which allows remote web servers to obtain sensitive information by logging this header.
Weaknesses (CWE)
Affected Products (12)
References (20)