{"cve":{"cve_id":"CVE-2011-1498","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":0.06685,"epss_percentile":0.93814,"epss_as_of":"2026-10-15","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.","published_at":"2011-07-07T21:00:00Z","last_modified_at":"2026-06-16T23:29:30.027000Z","cvss_v3_score":null,"cvss_v3_vector":null,"cvss_v3_severity":null,"cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":["CWE-200"],"nvd_references":["http://marc.info/?l=httpclient-users&m=129853896315461&w=2","http://openwall.com/lists/oss-security/2011/04/08/1","https://bugzilla.redhat.com/show_bug.cgi?id=709531","http://marc.info/?l=httpclient-users&m=129856318011586&w=2","http://marc.info/?l=httpclient-users&m=129857589129183&w=2","http://openwall.com/lists/oss-security/2011/04/07/7","https://issues.apache.org/jira/browse/HTTPCLIENT-1061","http://www.kb.cert.org/vuls/id/153049","http://www.securityfocus.com/bid/46974","http://marc.info/?l=httpclient-users&m=129858274406594&w=2","http://securityreason.com/securityalert/8298","http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061440.html","http://marc.info/?l=httpclient-users&m=129858299106950&w=2","http://www.apache.org/dist/httpcomponents/httpclient/RELEASE_NOTES-4.1.x.txt"],"vuln_status":"Modified","trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-24T00:09:39.878444Z","updated_at":"2026-06-28T23:05:50.576083Z"},"effective_severity":null,"badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":null,"metrics":[]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"apache","vendor_name":"apache","product_slug":"httpclient","product_name":"httpclient","version_start":"4.0","version_start_inclusive":true,"version_end":"4.0","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:apache:httpclient:4.0:*:*:*:*:*:*:*"},{"vendor_slug":"apache","vendor_name":"apache","product_slug":"httpclient","product_name":"httpclient","version_start":"4.0","version_start_inclusive":true,"version_end":"4.0","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:apache:httpclient:4.0:alpha1:*:*:*:*:*:*"},{"vendor_slug":"apache","vendor_name":"apache","product_slug":"httpclient","product_name":"httpclient","version_start":"4.0","version_start_inclusive":true,"version_end":"4.0","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:apache:httpclient:4.0:alpha2:*:*:*:*:*:*"},{"vendor_slug":"apache","vendor_name":"apache","product_slug":"httpclient","product_name":"httpclient","version_start":"4.0","version_start_inclusive":true,"version_end":"4.0","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:apache:httpclient:4.0:alpha3:*:*:*:*:*:*"},{"vendor_slug":"apache","vendor_name":"apache","product_slug":"httpclient","product_name":"httpclient","version_start":"4.0","version_start_inclusive":true,"version_end":"4.0","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:apache:httpclient:4.0:alpha4:*:*:*:*:*:*"},{"vendor_slug":"apache","vendor_name":"apache","product_slug":"httpclient","product_name":"httpclient","version_start":"4.0","version_start_inclusive":true,"version_end":"4.0","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:apache:httpclient:4.0:beta1:*:*:*:*:*:*"},{"vendor_slug":"apache","vendor_name":"apache","product_slug":"httpclient","product_name":"httpclient","version_start":"4.0","version_start_inclusive":true,"version_end":"4.0","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:apache:httpclient:4.0:beta2:*:*:*:*:*:*"},{"vendor_slug":"apache","vendor_name":"apache","product_slug":"httpclient","product_name":"httpclient","version_start":"4.0.1","version_start_inclusive":true,"version_end":"4.0.1","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:apache:httpclient:4.0.1:*:*:*:*:*:*:*"},{"vendor_slug":"apache","vendor_name":"apache","product_slug":"httpclient","product_name":"httpclient","version_start":"4.1","version_start_inclusive":true,"version_end":"4.1","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:apache:httpclient:4.1:*:*:*:*:*:*:*"},{"vendor_slug":"apache","vendor_name":"apache","product_slug":"httpclient","product_name":"httpclient","version_start":"4.1","version_start_inclusive":true,"version_end":"4.1","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:apache:httpclient:4.1:alpha1:*:*:*:*:*:*"},{"vendor_slug":"apache","vendor_name":"apache","product_slug":"httpclient","product_name":"httpclient","version_start":"4.1","version_start_inclusive":true,"version_end":"4.1","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:apache:httpclient:4.1:alpha2:*:*:*:*:*:*"},{"vendor_slug":"apache","vendor_name":"apache","product_slug":"httpclient","product_name":"httpclient","version_start":"4.1","version_start_inclusive":true,"version_end":"4.1","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:apache:httpclient:4.1:beta1:*:*:*:*:*:*"}],"exploit_refs":[],"news":[],"references":[{"url":"http://marc.info/?l=httpclient-users&m=129853896315461&w=2","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"http://openwall.com/lists/oss-security/2011/04/08/1","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=709531","source_type":"MISC","tags":[]},{"url":"http://marc.info/?l=httpclient-users&m=129856318011586&w=2","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"http://marc.info/?l=httpclient-users&m=129857589129183&w=2","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"http://openwall.com/lists/oss-security/2011/04/07/7","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"https://issues.apache.org/jira/browse/HTTPCLIENT-1061","source_type":"MISC","tags":[]},{"url":"http://www.kb.cert.org/vuls/id/153049","source_type":"MISC","tags":[]},{"url":"http://www.securityfocus.com/bid/46974","source_type":"MISC","tags":[]},{"url":"http://marc.info/?l=httpclient-users&m=129858274406594&w=2","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"http://securityreason.com/securityalert/8298","source_type":"MISC","tags":[]},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061440.html","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"http://marc.info/?l=httpclient-users&m=129858299106950&w=2","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"http://www.apache.org/dist/httpcomponents/httpclient/RELEASE_NOTES-4.1.x.txt","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2011-07-07T21:00:00Z","label":"CVE published","source":null}]}