VULNERABILITY INTELLIGENCE
CVE-2011-1498
CVSS score4.3 MEDIUM
EPSS probability6.69%
CISA KEVNot currently listed
Published2011-07-07
Last modified2026-06-16
CVSS vectorAV:N/AC:M/Au:N/C:P/I:N/A:N
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.
Weakness classification
- CWE-200: Exposure of Sensitive Information to an Unauthorized Actor