{"id":"CVE-2013-4286","title":"Apache Tomcat before 6.0.39, 7.x before 7.0.47, and 8.x before 8.0.0-RC3, when an HTTP connector or AJP connector is used, does not properly handle certain inconsistent HTTP request headers, which allows remote attackers to trigger incor…","summary":"Apache Tomcat before 6.0.39, 7.x before 7.0.47, and 8.x before 8.0.0-RC3, when an HTTP connector or AJP connector is used, does not properly handle certain inconsistent HTTP request headers, which allows remote attackers to trigger incor…","severity":"medium","cvss":5.8,"cvssVector":"AV:N/AC:M/Au:N/C:P/I:P/A:N","cwe":["CWE-20"],"vendor":"apache","product":"tomcat","affected":["tomcat = 7.0.0","tomcat = 7.0.1","tomcat = 7.0.2","tomcat = 7.0.3","tomcat = 7.0.4","tomcat = 7.0.10","tomcat = 7.0.11","tomcat = 7.0.12","tomcat = 7.0.13","tomcat = 7.0.14","tomcat = 7.0.15","tomcat = 7.0.16","tomcat = 7.0.17","tomcat = 7.0.18","tomcat = 7.0.19","tomcat = 7.0.20","tomcat = 7.0.21","tomcat = 7.0.22","tomcat = 7.0.23","tomcat = 7.0.24","tomcat = 7.0.25","tomcat = 7.0.26","tomcat = 7.0.27","tomcat = 7.0.28","tomcat = 7.0.29","tomcat = 7.0.30","tomcat = 7.0.31","tomcat = 7.0.32","tomcat = 7.0.33","tomcat = 7.0.34","tomcat = 7.0.35","tomcat = 7.0.36","tomcat = 7.0.37","tomcat = 7.0.38","tomcat = 7.0.39","tomcat = 7.0.40","tomcat = 7.0.41","tomcat = 7.0.42","tomcat = 7.0.43","tomcat = 7.0.44","tomcat = 7.0.45","tomcat = 7.0.46","tomcat = 8.0.0","tomcat <= 6.0.37","tomcat = 1.1.3","tomcat = 3.0","tomcat = 3.1","tomcat = 3.1.1","tomcat = 3.2","tomcat = 3.2.1","tomcat = 3.2.2","tomcat = 3.2.3","tomcat = 3.2.4","tomcat = 3.3","tomcat = 3.3.1","tomcat = 3.3.1a","tomcat = 3.3.2","tomcat = 4","tomcat = 4.0.0","tomcat = 4.0.1","tomcat = 4.0.2","tomcat = 4.0.3","tomcat = 4.0.4","tomcat = 4.0.5","tomcat = 4.0.6","tomcat = 4.1.0","tomcat = 4.1.1","tomcat = 4.1.2","tomcat = 4.1.3","tomcat = 4.1.9","tomcat = 4.1.10","tomcat = 4.1.12","tomcat = 4.1.15","tomcat = 4.1.24","tomcat = 4.1.28","tomcat = 4.1.29","tomcat = 4.1.31","tomcat = 4.1.36","tomcat = 5","tomcat = 5.0.0","tomcat = 5.0.1","tomcat = 5.0.2","tomcat = 5.0.3","tomcat = 5.0.4","tomcat = 5.0.5","tomcat = 5.0.6","tomcat = 5.0.7","tomcat = 5.0.8","tomcat = 5.0.9","tomcat = 5.0.10","tomcat = 5.0.11","tomcat = 5.0.12","tomcat = 5.0.13","tomcat = 5.0.14","tomcat = 5.0.15","tomcat = 5.0.16","tomcat = 5.0.17","tomcat = 5.0.18","tomcat = 5.0.19","tomcat = 5.0.21"],"published":"2014-02-26","updated":"2026-10-09","sourceUpdated":"2026-10-09T20:17:07.187","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2013-4286","references":[{"url":"http://advisories.mageia.org/MGASA-2014-0148.html","label":"secalert@redhat.com"},{"url":"http://marc.info/?l=bugtraq&m=141390017113542&w=2","label":"secalert@redhat.com"},{"url":"http://marc.info/?l=bugtraq&m=144498216801440&w=2","label":"secalert@redhat.com"},{"url":"http://rhn.redhat.com/errata/RHSA-2014-0343.html","label":"secalert@redhat.com"},{"url":"http://rhn.redhat.com/errata/RHSA-2014-0344.html","label":"secalert@redhat.com"},{"url":"http://rhn.redhat.com/errata/RHSA-2014-0345.html","label":"secalert@redhat.com"},{"url":"http://seclists.org/fulldisclosure/2014/Dec/23","label":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/57675","label":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/59036","label":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/59675","label":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/59722","label":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/59724","label":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/59733","label":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/59873","label":"secalert@redhat.com"},{"url":"http://svn.apache.org/viewvc?view=revision&revision=1521829","label":"secalert@redhat.com"},{"url":"http://svn.apache.org/viewvc?view=revision&revision=1521854","label":"secalert@redhat.com"},{"url":"http://svn.apache.org/viewvc?view=revision&revision=1552565","label":"secalert@redhat.com"},{"url":"http://tomcat.apache.org/security-6.html","label":"secalert@redhat.com"},{"url":"http://tomcat.apache.org/security-7.html","label":"secalert@redhat.com"},{"url":"http://tomcat.apache.org/security-8.html","label":"secalert@redhat.com"},{"url":"http://www-01.ibm.com/support/docview.wss?uid=swg21667883","label":"secalert@redhat.com"},{"url":"http://www-01.ibm.com/support/docview.wss?uid=swg21675886","label":"secalert@redhat.com"},{"url":"http://www-01.ibm.com/support/docview.wss?uid=swg21677147","label":"secalert@redhat.com"},{"url":"http://www-01.ibm.com/support/docview.wss?uid=swg21678113","label":"secalert@redhat.com"},{"url":"http://www-01.ibm.com/support/docview.wss?uid=swg21678231","label":"secalert@redhat.com"},{"url":"http://www.debian.org/security/2016/dsa-3530","label":"secalert@redhat.com"},{"url":"http://www.mandriva.com/security/advisories?name=MDVSA-2015:052","label":"secalert@redhat.com"},{"url":"http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html","label":"secalert@redhat.com"},{"url":"http://www.oracle.com/technetwork/topics/security/cpuapr2015-2365600.html","label":"secalert@redhat.com"},{"url":"http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html","label":"secalert@redhat.com"},{"url":"http://www.oracle.com/technetwork/topics/security/cpujul2014-1972956.html","label":"secalert@redhat.com"},{"url":"http://www.oracle.com/technetwork/topics/security/cpuoct2014-1972960.html","label":"secalert@redhat.com"},{"url":"http://www.securityfocus.com/archive/1/534161/100/0/threaded","label":"secalert@redhat.com"},{"url":"http://www.securityfocus.com/bid/65773","label":"secalert@redhat.com"},{"url":"http://www.ubuntu.com/usn/USN-2130-1","label":"secalert@redhat.com"},{"url":"http://www.vmware.com/security/advisories/VMSA-2014-0012.html","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1069921","label":"secalert@redhat.com"},{"url":"https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04851013","label":"secalert@redhat.com"},{"url":"https://lists.apache.org/thread.html/37220405a377c0182d2afdbc36461c4783b2930fbeae3a17f1333113%40%3Cdev.tomcat.apache.org%3E","label":"secalert@redhat.com"},{"url":"https://lists.apache.org/thread.html/39ae1f0bd5867c15755a6f959b271ade1aea04ccdc3b2e639dcd903b%40%3Cdev.tomcat.apache.org%3E","label":"secalert@redhat.com"},{"url":"https://lists.apache.org/thread.html/b84ad1258a89de5c9c853c7f2d3ad77e5b8b2930be9e132d5cef6b95%40%3Cdev.tomcat.apache.org%3E","label":"secalert@redhat.com"},{"url":"https://lists.apache.org/thread.html/b8a1bf18155b552dcf9a928ba808cbadad84c236d85eab3033662cfb%40%3Cdev.tomcat.apache.org%3E","label":"secalert@redhat.com"},{"url":"https://lists.apache.org/thread.html/r03c597a64de790ba42c167efacfa23300c3d6c9fe589ab87fe02859c%40%3Cdev.tomcat.apache.org%3E","label":"secalert@redhat.com"},{"url":"https://lists.apache.org/thread.html/r587e50b86c1a96ee301f751d50294072d142fd6dc08a8987ae9f3a9b%40%3Cdev.tomcat.apache.org%3E","label":"secalert@redhat.com"},{"url":"https://rhn.redhat.com/errata/RHSA-2014-0686.html","label":"secalert@redhat.com"},{"url":"http://advisories.mageia.org/MGASA-2014-0148.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://marc.info/?l=bugtraq&m=141390017113542&w=2","label":"af854a3a-2127-422b-91ae-364da2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he.org%3E","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://rhn.redhat.com/errata/RHSA-2014-0686.html","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"epss":0.16833,"epssPercentile":0.96978,"ingestedAt":"2026-10-09T21:12:42.313Z","slug":"CVE-2013-4286","body":"## Overview\n\nApache Tomcat before 6.0.39, 7.x before 7.0.47, and 8.x before 8.0.0-RC3, when an HTTP connector or AJP connector is used, does not properly handle certain inconsistent HTTP request headers, which allows remote attackers to trigger incorrect identification of a request's length and conduct request-smuggling attacks via (1) multiple Content-Length headers or (2) a Content-Length header and a \"Transfer-Encoding: chunked\" header.  NOTE: this vulnerability exists because of an incomplete fix for CVE-2005-2090.\n\n## Affected\n\n- `tomcat = 7.0.0`\n- `tomcat = 7.0.1`\n- `tomcat = 7.0.2`\n- `tomcat = 7.0.3`\n- `tomcat = 7.0.4`\n- `tomcat = 7.0.10`\n- `tomcat = 7.0.11`\n- `tomcat = 7.0.12`\n- `tomcat = 7.0.13`\n- `tomcat = 7.0.14`\n- `tomcat = 7.0.15`\n- `tomcat = 7.0.16`\n- `tomcat = 7.0.17`\n- `tomcat = 7.0.18`\n- `tomcat = 7.0.19`\n- `tomcat = 7.0.20`\n- `tomcat = 7.0.21`\n- `tomcat = 7.0.22`\n- `tomcat = 7.0.23`\n- `tomcat = 7.0.24`\n- `tomcat = 7.0.25`\n- `tomcat = 7.0.26`\n- `tomcat = 7.0.27`\n- `tomcat = 7.0.28`\n- `tomcat = 7.0.29`\n- `tomcat = 7.0.30`\n- `tomcat = 7.0.31`\n- `tomcat = 7.0.32`\n- `tomcat = 7.0.33`\n- `tomcat = 7.0.34`\n- `tomcat = 7.0.35`\n- `tomcat = 7.0.36`\n- `tomcat = 7.0.37`\n- `tomcat = 7.0.38`\n- `tomcat = 7.0.39`\n- `tomcat = 7.0.40`\n- `tomcat = 7.0.41`\n- `tomcat = 7.0.42`\n- `tomcat = 7.0.43`\n- `tomcat = 7.0.44`\n- `tomcat = 7.0.45`\n- `tomcat = 7.0.46`\n- `tomcat = 8.0.0`\n- `tomcat <= 6.0.37`\n- `tomcat = 1.1.3`\n- `tomcat = 3.0`\n- `tomcat = 3.1`\n- `tomcat = 3.1.1`\n- `tomcat = 3.2`\n- `tomcat = 3.2.1`\n- `tomcat = 3.2.2`\n- `tomcat = 3.2.3`\n- `tomcat = 3.2.4`\n- `tomcat = 3.3`\n- `tomcat = 3.3.1`\n- `tomcat = 3.3.1a`\n- `tomcat = 3.3.2`\n- `tomcat = 4`\n- `tomcat = 4.0.0`\n- `tomcat = 4.0.1`\n- `tomcat = 4.0.2`\n- `tomcat = 4.0.3`\n- `tomcat = 4.0.4`\n- `tomcat = 4.0.5`\n- `tomcat = 4.0.6`\n- `tomcat = 4.1.0`\n- `tomcat = 4.1.1`\n- `tomcat = 4.1.2`\n- `tomcat = 4.1.3`\n- `tomcat = 4.1.9`\n- `tomcat = 4.1.10`\n- `tomcat = 4.1.12`\n- `tomcat = 4.1.15`\n- `tomcat = 4.1.24`\n- `tomcat = 4.1.28`\n- `tomcat = 4.1.29`\n- `tomcat = 4.1.31`\n- `tomcat = 4.1.36`\n- `tomcat = 5`\n- `tomcat = 5.0.0`\n- `tomcat = 5.0.1`\n- `tomcat = 5.0.2`\n- `tomcat = 5.0.3`\n- `tomcat = 5.0.4`\n- `tomcat = 5.0.5`\n- `tomcat = 5.0.6`\n- `tomcat = 5.0.7`\n- `tomcat = 5.0.8`\n- `tomcat = 5.0.9`\n- `tomcat = 5.0.10`\n- `tomcat = 5.0.11`\n- `tomcat = 5.0.12`\n- `tomcat = 5.0.13`\n- `tomcat = 5.0.14`\n- `tomcat = 5.0.15`\n- `tomcat = 5.0.16`\n- `tomcat = 5.0.17`\n- `tomcat = 5.0.18`\n- `tomcat = 5.0.19`\n- `tomcat = 5.0.21`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":35,"depthScoreParts":{"impact":31.9,"likelihood":3.4,"exploitation":0,"ransomware":0},"changes":[]}