{"id":"CVE-2011-1498","aliases":["GHSA-gw85-4gmf-m7rh"],"url":"https://o3.security/vulnerability/CVE-2011-1498","summary":"Exposure of Sensitive Information to an Unauthorized Actor in Apache HttpClient","details":"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.","published":"2011-07-07T21:55:01Z","modified":"2026-04-10T03:41:44.485696Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"org.apache.httpcomponents:httpclient","fixedVersion":"4.1.1"}],"fix":null,"references":[{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=709531"},{"type":"WEB","url":"http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061440.html"},{"type":"WEB","url":"http://marc.info/?l=httpclient-users&m=129853896315461&w=2"},{"type":"WEB","url":"http://marc.info/?l=httpclient-users&m=129856318011586&w=2"},{"type":"WEB","url":"http://marc.info/?l=httpclient-users&m=129857589129183&w=2"},{"type":"WEB","url":"http://marc.info/?l=httpclient-users&m=129858274406594&w=2"},{"type":"WEB","url":"http://marc.info/?l=httpclient-users&m=129858299106950&w=2"},{"type":"WEB","url":"http://openwall.com/lists/oss-security/2011/04/07/7"},{"type":"WEB","url":"http://openwall.com/lists/oss-security/2011/04/08/1"},{"type":"WEB","url":"http://securityreason.com/securityalert/8298"},{"type":"WEB","url":"http://www.apache.org/dist/httpcomponents/httpclient/RELEASE_NOTES-4.1.x.txt"},{"type":"WEB","url":"http://www.kb.cert.org/vuls/id/153049"},{"type":"WEB","url":"http://www.securityfocus.com/bid/46974"},{"type":"WEB","url":"https://issues.apache.org/jira/browse/HTTPCLIENT-1061"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-04-10T03:41:44.485696Z"}}