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Vulnerability details: VCID-h9ds-trhx-m7aj
Vulnerability ID VCID-h9ds-trhx-m7aj
Aliases CVE-2013-4286
GHSA-j448-j653-r3vj
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 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.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (4)
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-20 Improper Input Validation
CWE-707 Improper Neutralization
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
generic_textual MODERATE http://advisories.mageia.org/MGASA-2014-0148.html
generic_textual MODERATE http://marc.info/?l=bugtraq&m=141390017113542&w=2
generic_textual MODERATE http://marc.info/?l=bugtraq&m=144498216801440&w=2
generic_textual MODERATE http://rhn.redhat.com/errata/RHSA-2014-0343.html
generic_textual MODERATE http://rhn.redhat.com/errata/RHSA-2014-0344.html
generic_textual MODERATE http://rhn.redhat.com/errata/RHSA-2014-0345.html
epss 0.23601 https://api.first.org/data/v1/epss?cve=CVE-2013-4286
epss 0.23601 https://api.first.org/data/v1/epss?cve=CVE-2013-4286
epss 0.23601 https://api.first.org/data/v1/epss?cve=CVE-2013-4286
epss 0.23601 https://api.first.org/data/v1/epss?cve=CVE-2013-4286
epss 0.23601 https://api.first.org/data/v1/epss?cve=CVE-2013-4286
epss 0.23601 https://api.first.org/data/v1/epss?cve=CVE-2013-4286
epss 0.23601 https://api.first.org/data/v1/epss?cve=CVE-2013-4286
epss 0.23601 https://api.first.org/data/v1/epss?cve=CVE-2013-4286
epss 0.23601 https://api.first.org/data/v1/epss?cve=CVE-2013-4286
epss 0.23601 https://api.first.org/data/v1/epss?cve=CVE-2013-4286
epss 0.23601 https://api.first.org/data/v1/epss?cve=CVE-2013-4286
epss 0.23601 https://api.first.org/data/v1/epss?cve=CVE-2013-4286
generic_textual MODERATE https://bugzilla.redhat.com/show_bug.cgi?id=1069921
apache_tomcat Important https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-4286
cvssv3.1_qr MODERATE https://github.com/advisories/GHSA-j448-j653-r3vj
generic_textual MODERATE https://github.com/apache/tomcat
generic_textual MODERATE https://github.com/apache/tomcat80/commit/ff00954b78e6484e40f323c0cef2e6d95c2882b9
generic_textual MODERATE https://github.com/apache/tomcat/commit/41b90b6ebc3e7f898a5a87d197ddf63790d33315
generic_textual MODERATE https://github.com/apache/tomcat/commit/7c040003f1387795356605566be7870cf70e05dc
generic_textual MODERATE https://github.com/apache/tomcat/commit/bcce3e4997a4ed06fe03e2517443f3ad8ade2dfa
generic_textual MODERATE https://github.com/apache/tomcat/commit/d0b3e252eb168fafbfb4c3efc16d4192fc8fad6c
generic_textual MODERATE https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04851013
generic_textual MODERATE https://lists.apache.org/thread.html/37220405a377c0182d2afdbc36461c4783b2930fbeae3a17f1333113@%3Cdev.tomcat.apache.org%3E
generic_textual MODERATE https://lists.apache.org/thread.html/39ae1f0bd5867c15755a6f959b271ade1aea04ccdc3b2e639dcd903b@%3Cdev.tomcat.apache.org%3E
generic_textual MODERATE https://lists.apache.org/thread.html/b84ad1258a89de5c9c853c7f2d3ad77e5b8b2930be9e132d5cef6b95@%3Cdev.tomcat.apache.org%3E
generic_textual MODERATE https://lists.apache.org/thread.html/b8a1bf18155b552dcf9a928ba808cbadad84c236d85eab3033662cfb@%3Cdev.tomcat.apache.org%3E
generic_textual MODERATE https://lists.apache.org/thread.html/r03c597a64de790ba42c167efacfa23300c3d6c9fe589ab87fe02859c@%3Cdev.tomcat.apache.org%3E
generic_textual MODERATE https://lists.apache.org/thread.html/r587e50b86c1a96ee301f751d50294072d142fd6dc08a8987ae9f3a9b@%3Cdev.tomcat.apache.org%3E
generic_textual MODERATE https://nvd.nist.gov/vuln/detail/CVE-2013-4286
generic_textual MODERATE https://rhn.redhat.com/errata/RHSA-2014-0686.html
generic_textual MODERATE http://svn.apache.org/viewvc?view=revision&revision=1521829
generic_textual MODERATE http://svn.apache.org/viewvc?view=revision&revision=1521854
generic_textual MODERATE http://svn.apache.org/viewvc?view=revision&revision=1552565
generic_textual MODERATE https://web.archive.org/web/20140724174205/http://secunia.com/advisories/57675
generic_textual MODERATE https://web.archive.org/web/20140804172142/http://secunia.com/advisories/59036
generic_textual MODERATE https://web.archive.org/web/20141230041748/http://seclists.org/fulldisclosure/2014/Dec/23
generic_textual MODERATE https://web.archive.org/web/20160317145515/http://www.securityfocus.com/archive/1/534161/100/0/threaded
generic_textual MODERATE https://web.archive.org/web/20160729061926/http://www.securityfocus.com/bid/65773
generic_textual MODERATE https://web.archive.org/web/20161014054543/http://www-01.ibm.com/support/docview.wss?uid=swg21678231
generic_textual MODERATE https://web.archive.org/web/20161014054838/http://www-01.ibm.com/support/docview.wss?uid=swg21677147
generic_textual MODERATE https://web.archive.org/web/20161014054913/http://www-01.ibm.com/support/docview.wss?uid=swg21678113
generic_textual MODERATE https://web.archive.org/web/20161014054948/http://www-01.ibm.com/support/docview.wss?uid=swg21667883
generic_textual MODERATE https://web.archive.org/web/20161024215453/http://secunia.com/advisories/59873
generic_textual MODERATE https://web.archive.org/web/20161024215639/http://secunia.com/advisories/59722
generic_textual MODERATE https://web.archive.org/web/20161024215804/http://secunia.com/advisories/59675
generic_textual MODERATE https://web.archive.org/web/20161024220018/http://secunia.com/advisories/59724
generic_textual MODERATE https://web.archive.org/web/20161024220034/http://secunia.com/advisories/59733
generic_textual MODERATE http://tomcat.apache.org/security-6.html
generic_textual MODERATE http://tomcat.apache.org/security-7.html
generic_textual MODERATE http://tomcat.apache.org/security-8.html
generic_textual MODERATE http://www-01.ibm.com/support/docview.wss?uid=swg21675886
generic_textual MODERATE http://www.debian.org/security/2016/dsa-3530
generic_textual MODERATE http://www.mandriva.com/security/advisories?name=MDVSA-2015:052
generic_textual MODERATE http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html
generic_textual MODERATE http://www.oracle.com/technetwork/topics/security/cpuapr2015-2365600.html
generic_textual MODERATE http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html
generic_textual MODERATE http://www.oracle.com/technetwork/topics/security/cpujul2014-1972956.html
generic_textual MODERATE http://www.oracle.com/technetwork/topics/security/cpuoct2014-1972960.html
generic_textual MODERATE http://www.ubuntu.com/usn/USN-2130-1
generic_textual MODERATE http://www.vmware.com/security/advisories/VMSA-2014-0012.html
Reference id Reference type URL
http://advisories.mageia.org/MGASA-2014-0148.html
http://marc.info/?l=bugtraq&m=141390017113542&w=2
http://marc.info/?l=bugtraq&m=144498216801440&w=2
http://rhn.redhat.com/errata/RHSA-2014-0343.html
http://rhn.redhat.com/errata/RHSA-2014-0344.html
http://rhn.redhat.com/errata/RHSA-2014-0345.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2013-4286.json
https://api.first.org/data/v1/epss?cve=CVE-2013-4286
https://bugzilla.redhat.com/show_bug.cgi?id=1069921
http://seclists.org/fulldisclosure/2014/Dec/23
http://secunia.com/advisories/57675
http://secunia.com/advisories/59036
http://secunia.com/advisories/59675
http://secunia.com/advisories/59722
http://secunia.com/advisories/59724
http://secunia.com/advisories/59733
http://secunia.com/advisories/59873
https://github.com/apache/tomcat
https://github.com/apache/tomcat70/commit/41b90b6ebc3e7f898a5a87d197ddf63790d33315
https://github.com/apache/tomcat80/commit/ff00954b78e6484e40f323c0cef2e6d95c2882b9
https://github.com/apache/tomcat/commit/41b90b6ebc3e7f898a5a87d197ddf63790d33315
https://github.com/apache/tomcat/commit/7c040003f1387795356605566be7870cf70e05dc
https://github.com/apache/tomcat/commit/bcce3e4997a4ed06fe03e2517443f3ad8ade2dfa
https://github.com/apache/tomcat/commit/d0b3e252eb168fafbfb4c3efc16d4192fc8fad6c
https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04851013
https://lists.apache.org/thread.html/37220405a377c0182d2afdbc36461c4783b2930fbeae3a17f1333113@%3Cdev.tomcat.apache.org%3E
https://lists.apache.org/thread.html/39ae1f0bd5867c15755a6f959b271ade1aea04ccdc3b2e639dcd903b@%3Cdev.tomcat.apache.org%3E
https://lists.apache.org/thread.html/b84ad1258a89de5c9c853c7f2d3ad77e5b8b2930be9e132d5cef6b95@%3Cdev.tomcat.apache.org%3E
https://lists.apache.org/thread.html/b8a1bf18155b552dcf9a928ba808cbadad84c236d85eab3033662cfb@%3Cdev.tomcat.apache.org%3E
https://lists.apache.org/thread.html/r03c597a64de790ba42c167efacfa23300c3d6c9fe589ab87fe02859c@%3Cdev.tomcat.apache.org%3E
https://lists.apache.org/thread.html/r587e50b86c1a96ee301f751d50294072d142fd6dc08a8987ae9f3a9b@%3Cdev.tomcat.apache.org%3E
https://rhn.redhat.com/errata/RHSA-2014-0686.html
https://svn.apache.org/viewvc?view=rev&rev=1521829
https://svn.apache.org/viewvc?view=rev&rev=1521854
https://svn.apache.org/viewvc?view=rev&rev=1552565
http://svn.apache.org/viewvc?view=revision&revision=1521829
http://svn.apache.org/viewvc?view=revision&revision=1521854
http://svn.apache.org/viewvc?view=revision&revision=1552565
https://web.archive.org/web/20140724174205/http://secunia.com/advisories/57675
https://web.archive.org/web/20140804172142/http://secunia.com/advisories/59036
https://web.archive.org/web/20141230041748/http://seclists.org/fulldisclosure/2014/Dec/23
https://web.archive.org/web/20160317145515/http://www.securityfocus.com/archive/1/534161/100/0/threaded
https://web.archive.org/web/20160729061926/http://www.securityfocus.com/bid/65773
https://web.archive.org/web/20161014054543/http://www-01.ibm.com/support/docview.wss?uid=swg21678231
https://web.archive.org/web/20161014054838/http://www-01.ibm.com/support/docview.wss?uid=swg21677147
https://web.archive.org/web/20161014054913/http://www-01.ibm.com/support/docview.wss?uid=swg21678113
https://web.archive.org/web/20161014054948/http://www-01.ibm.com/support/docview.wss?uid=swg21667883
https://web.archive.org/web/20161024215453/http://secunia.com/advisories/59873
https://web.archive.org/web/20161024215639/http://secunia.com/advisories/59722
https://web.archive.org/web/20161024215804/http://secunia.com/advisories/59675
https://web.archive.org/web/20161024220018/http://secunia.com/advisories/59724
https://web.archive.org/web/20161024220034/http://secunia.com/advisories/59733
http://tomcat.apache.org/security-6.html
http://tomcat.apache.org/security-7.html
http://tomcat.apache.org/security-8.html
http://www-01.ibm.com/support/docview.wss?uid=swg21667883
http://www-01.ibm.com/support/docview.wss?uid=swg21675886
http://www-01.ibm.com/support/docview.wss?uid=swg21677147
http://www-01.ibm.com/support/docview.wss?uid=swg21678113
http://www-01.ibm.com/support/docview.wss?uid=swg21678231
http://www.debian.org/security/2016/dsa-3530
http://www.mandriva.com/security/advisories?name=MDVSA-2015:052
http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html
http://www.oracle.com/technetwork/topics/security/cpuapr2015-2365600.html
http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html
http://www.oracle.com/technetwork/topics/security/cpujul2014-1972956.html
http://www.oracle.com/technetwork/topics/security/cpuoct2014-1972960.html
http://www.securityfocus.com/archive/1/534161/100/0/threaded
http://www.securityfocus.com/bid/65773
http://www.ubuntu.com/usn/USN-2130-1
http://www.vmware.com/security/advisories/VMSA-2014-0012.html
CVE-2013-4286 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-4286
CVE-2013-4286 https://nvd.nist.gov/vuln/detail/CVE-2013-4286
GHSA-j448-j653-r3vj https://github.com/advisories/GHSA-j448-j653-r3vj
GLSA-201412-29 https://security.gentoo.org/glsa/201412-29
RHSA-2014:0343 https://access.redhat.com/errata/RHSA-2014:0343
RHSA-2014:0344 https://access.redhat.com/errata/RHSA-2014:0344
RHSA-2014:0345 https://access.redhat.com/errata/RHSA-2014:0345
RHSA-2014:0373 https://access.redhat.com/errata/RHSA-2014:0373
RHSA-2014:0374 https://access.redhat.com/errata/RHSA-2014:0374
RHSA-2014:0429 https://access.redhat.com/errata/RHSA-2014:0429
RHSA-2014:0458 https://access.redhat.com/errata/RHSA-2014:0458
RHSA-2014:0459 https://access.redhat.com/errata/RHSA-2014:0459
RHSA-2014:0511 https://access.redhat.com/errata/RHSA-2014:0511
RHSA-2014:0525 https://access.redhat.com/errata/RHSA-2014:0525
RHSA-2014:0526 https://access.redhat.com/errata/RHSA-2014:0526
RHSA-2014:0527 https://access.redhat.com/errata/RHSA-2014:0527
RHSA-2014:0528 https://access.redhat.com/errata/RHSA-2014:0528
RHSA-2014:0686 https://access.redhat.com/errata/RHSA-2014:0686
RHSA-2015:1009 https://access.redhat.com/errata/RHSA-2015:1009
USN-2130-1 https://usn.ubuntu.com/2130-1/
No exploits are available.
Exploit Prediction Scoring System (EPSS)
Percentile 0.95952
EPSS Score 0.23601
Published At April 1, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T12:38:13.371600+00:00 Apache Tomcat Importer Import https://tomcat.apache.org/security-8.html 38.0.0