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…

Description

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.

Scores

EPSS (exploitation in 30 days)

16.2% · top 3.0% of all CVEs (4 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: no · Technical impact: partial

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.8.

Weakness

• n/a
• CWE-20 (opens in a new tab)All about CWE-20 and its CVEs

Affected products

• n/a

  • affected n/a

Affected packages

From reviewed advisories of the GitHub Advisory Database.

• Mavenorg.apache.tomcat:tomcatGHSA-j448-j653-r3vj (opens in a new tab)

References (45)

• RHSA-2014:0345 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• 59733 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• http://www.vmware.com/security/advisories/VMSA-2014-0012.html (opens in a new tab)x_refsource_CONFIRMx_transferred
• RHSA-2014:0686 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• MDVSA-2015:052 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
• 59724 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• DSA-3530 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
• http://tomcat.apache.org/security-7.html (opens in a new tab)x_refsource_CONFIRMx_transferred
• 57675 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 20141205 NEW: VMSA-2014-0012 - VMware vSphere product updates address security vulnerabilities (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
• http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html (opens in a new tab)x_refsource_CONFIRMx_transferred
• http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html (opens in a new tab)x_refsource_CONFIRMx_transferred
• RHSA-2014:0344 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• HPSBUX03150 (opens in a new tab)vendor-advisoryx_refsource_HPx_transferred
• http://www-01.ibm.com/support/docview.wss?uid=swg21678113 (opens in a new tab)x_refsource_CONFIRMx_transferred
• http://tomcat.apache.org/security-8.html (opens in a new tab)x_refsource_CONFIRMx_transferred
• http://www.oracle.com/technetwork/topics/security/cpuapr2015-2365600.html (opens in a new tab)x_refsource_CONFIRMx_transferred
• http://www-01.ibm.com/support/docview.wss?uid=swg21677147 (opens in a new tab)x_refsource_CONFIRMx_transferred
• http://www-01.ibm.com/support/docview.wss?uid=swg21678231 (opens in a new tab)x_refsource_CONFIRMx_transferred
• http://advisories.mageia.org/MGASA-2014-0148.html (opens in a new tab)x_refsource_CONFIRMx_transferred
• 59722 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• http://tomcat.apache.org/security-6.html (opens in a new tab)x_refsource_CONFIRMx_transferred
• https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04851013 (opens in a new tab)x_refsource_CONFIRMx_transferred
• 59675 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• http://www.oracle.com/technetwork/topics/security/cpujul2014-1972956.html (opens in a new tab)x_refsource_CONFIRMx_transferred
• USN-2130-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• 59873 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• RHSA-2014:0343 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• http://svn.apache.org/viewvc?view=revision&revision=1521854 (opens in a new tab)x_refsource_CONFIRMx_transferred
• 20141205 NEW: VMSA-2014-0012 - VMware vSphere product updates address security vulnerabilities (opens in a new tab)mailing-listx_refsource_FULLDISCx_transferred
• http://www-01.ibm.com/support/docview.wss?uid=swg21667883 (opens in a new tab)x_refsource_CONFIRMx_transferred
• https://bugzilla.redhat.com/show_bug.cgi?id=1069921 (opens in a new tab)x_refsource_CONFIRMx_transferred
• HPSBOV03503 (opens in a new tab)vendor-advisoryx_refsource_HPx_transferred
• http://www.oracle.com/technetwork/topics/security/cpuoct2014-1972960.html (opens in a new tab)x_refsource_CONFIRMx_transferred
• http://svn.apache.org/viewvc?view=revision&revision=1552565 (opens in a new tab)x_refsource_CONFIRMx_transferred
• http://www-01.ibm.com/support/docview.wss?uid=swg21675886 (opens in a new tab)x_refsource_CONFIRMx_transferred
• http://svn.apache.org/viewvc?view=revision&revision=1521829 (opens in a new tab)x_refsource_CONFIRMx_transferred
• 65773 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
• 59036 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• [tomcat-dev] 20190319 svn commit: r1855831 [23/30] - in /tomcat/site/trunk: ./ docs/ xdocs/ (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• [tomcat-dev] 20190325 svn commit: r1856174 [21/29] - in /tomcat/site/trunk: docs/ xdocs/ xdocs/stylesheets/ (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• [tomcat-dev] 20190413 svn commit: r1857494 [15/20] - in /tomcat/site/trunk: ./ docs/ xdocs/ (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• [tomcat-dev] 20190415 svn commit: r1857582 [16/22] - in /tomcat/site/trunk: docs/ xdocs/stylesheets/ (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• [tomcat-dev] 20200203 svn commit: r1873527 [23/30] - /tomcat/site/trunk/docs/ (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• [tomcat-dev] 20200213 svn commit: r1873980 [26/34] - /tomcat/site/trunk/docs/ (opens in a new tab)mailing-listx_refsource_MLISTx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisory GHSA-j448-j653-r3vj (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2013-4286](https://trackcve.app/badge/CVE-2013-4286.svg)](https://trackcve.app/cve/CVE-2013-4286)

Record last updated 9 Oct 2026, 19:11 UTC.