{"id":"CVE-2016-4694","aliases":["EUVD-2016-5679","GHSA-r72m-c53q-265m"],"status":"published","title":"The Apache HTTP Server in Apple OS X before 10.12 and OS X Server before 5.2 follows RFC 3875...","description":"The Apache HTTP Server in Apple OS X before 10.12 and OS X Server before 5.2 follows RFC 3875 section 4.1.18 and therefore does not protect applications from the presence of untrusted CGI client data in the HTTP_PROXY environment variable, which might allow remote attackers to redirect an application's outbound HTTP traffic to an arbitrary proxy server via a crafted Proxy header in an HTTP request, aka an \"httpoxy\" issue, a related issue to CVE-2016-5387.","severity":{"version":"3.0","score":9.1,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01345,"percentile":0.7159,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-284"],"published":"2016-09-25T10:00:00Z","modified":"2026-06-17T00:48:02Z","products":[{"vendor":"apple","product":"mac_os_x"},{"vendor":"apple","product":"os_x_server"}],"references":[{"url":"http://www.securityfocus.com/bid/93060","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"https://support.apple.com/HT207171","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.html","tags":["vendor-advisory","x_refsource_APPLE","x_transferred","Mailing List","Vendor Advisory"]},{"url":"http://www.securitytracker.com/id/1036853","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"]},{"url":"https://support.apple.com/HT207170","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"http://lists.apple.com/archives/security-announce/2016/Sep/msg00009.html","tags":["vendor-advisory","x_refsource_APPLE","x_transferred","Mailing List","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-4694"},{"url":"https://github.com/advisories/GHSA-r72m-c53q-265m"}],"sources":{"cve":[{"id":"CVE-2016-4694","description":"The Apache HTTP Server in Apple OS X before 10.12 and OS X Server before 5.2 follows RFC 3875 section 4.1.18 and therefore does not protect applications from the presence of untrusted CGI client data in the HTTP_PROXY environment variable, which might allow remote attackers to redirect an application's outbound HTTP traffic to an arbitrary proxy server via a crafted Proxy header in an HTTP request, aka an \"httpoxy\" issue, a related issue to CVE-2016-5387.","status":"published","published":"2016-09-25T10:00:00Z","modified":"2024-08-06T00:39:26.03Z","updated_at":"2026-11-02T14:33:35.488991Z"}],"euvd":[{"id":"EUVD-2016-5679","description":"The Apache HTTP Server in Apple OS X before 10.12 and OS X Server before 5.2 follows RFC 3875 section 4.1.18 and therefore does not protect applications from the presence of untrusted CGI client data in the HTTP_PROXY environment variable, which might allow remote attackers to redirect an application's outbound HTTP traffic to an arbitrary proxy server via a crafted Proxy header in an HTTP request, aka an \"httpoxy\" issue, a related issue to CVE-2016-5387.","status":"published","published":"2016-09-25T10:00:00Z","modified":"2024-08-06T00:39:26Z","updated_at":"2026-11-03T02:22:45.348111Z"}],"ghsa":[{"id":"GHSA-r72m-c53q-265m","title":"The Apache HTTP Server in Apple OS X before 10.12 and OS X Server before 5.2 follows RFC 3875...","description":"The Apache HTTP Server in Apple OS X before 10.12 and OS X Server before 5.2 follows RFC 3875 section 4.1.18 and therefore does not protect applications from the presence of untrusted CGI client data in the HTTP_PROXY environment variable, which might allow remote attackers to redirect an application's outbound HTTP traffic to an arbitrary proxy server via a crafted Proxy header in an HTTP request, aka an \"httpoxy\" issue, a related issue to CVE-2016-5387.","status":"published","published":"2022-05-17T02:22:16Z","modified":"2023-01-27T05:04:22Z","cvss":[{"version":"3.0","score":9.1,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical"}],"cwes":["CWE-284"],"updated_at":"2026-11-02T14:42:26.749233Z"}],"nvd":[{"id":"CVE-2016-4694","description":"The Apache HTTP Server in Apple OS X before 10.12 and OS X Server before 5.2 follows RFC 3875 section 4.1.18 and therefore does not protect applications from the presence of untrusted CGI client data in the HTTP_PROXY environment variable, which might allow remote attackers to redirect an application's outbound HTTP traffic to an arbitrary proxy server via a crafted Proxy header in an HTTP request, aka an \"httpoxy\" issue, a related issue to CVE-2016-5387.","status":"published","published":"2016-09-25T10:59:03.45Z","modified":"2026-06-17T00:48:02.293Z","cvss":[{"version":"3.0","score":9.1,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-284"],"updated_at":"2026-11-02T14:03:29.893676Z"}]}}