Description
Jakarta Tomcat 5.0.19 (Coyote/1.1) and Tomcat 4.1.24 (Coyote/1.0) allows remote attackers to poison the web cache, bypass web application firewall protection, and conduct XSS attacks via an HTTP request with both a "Transfer-Encoding: chunked" header and a Content-Length header, which causes Tomcat to incorrectly handle and forward the body of the request in a way that causes the receiving server to process it as a separate HTTP request, aka "HTTP Request Smuggling."
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5 | jakarta-commons-modeler +1 | 1.1-8jpp.1.0.2.el5 | RHSA-2007:0327 |
| RHEL 5 | tomcat5 +10 | 5.5.23-0jpp.1.0.3.el5 | RHSA-2007:0327 |
Show 7 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Rhel Developer Suite 3 | jakarta-commons-modeler | 2.0-3jpp_3rh | RHSA-2007:0328 |
| Red Hat Rhel Developer Suite 3 | tomcat5 +5 | 5.5.23-0jpp_6rh | RHSA-2007:0328 |
| Red Hat Rhel Application Stack 1 | jbossas | 4.0.5-2.CP04.el4s1.2 | RHSA-2007:0360 |
| Red Hat Rhel Application Server 2 | jakarta-commons-modeler +1 | 2.0-3jpp_2rh | RHSA-2007:0326 |
| Red Hat Rhel Application Server 2 | tomcat5 +10 | 5.5.23-0jpp_4rh.3 | RHSA-2007:0326 |
| Red Hat Rhel Application Server 1 | tomcat5 +2 | 5.0.30-0jpp_5rh | RHSA-2007:0340 |
| Red Hat Network Satellite 5 | jabberd | 2.0s10-3.38.rhn | RHSA-2008:0261 |
| Red Hat Network Satellite 5 | jakarta-commons-pool | 1.2-2jpp_2rh | RHSA-2007:1069 |
| Red Hat Network Satellite 5 | java-1.4.2-ibm +1 | 1.4.2.10-1jpp.2.el4 | RHSA-2008:0261 |
| Red Hat Network Satellite 5 | jfreechart | 0.9.20-3.rhn | RHSA-2008:0261 |
| Red Hat Network Satellite 5 | openmotif21 | 2.1.30-11.RHEL4.6 | RHSA-2008:0261 |
| Red Hat Network Satellite 5 | perl-Crypt-CBC | 2.24-1.el4 | RHSA-2008:0261 |
| Red Hat Network Satellite 5 | rhn-apache | 1.3.27-36.rhn.rhel4 | RHSA-2008:0261 |
| Red Hat Network Satellite 5 | rhn-modjk-ap13 | 1.2.23-2rhn.rhel4 | RHSA-2008:0261 |
| Red Hat Network Satellite 5 | rhn-modperl | 1.29-16.rhel4 | RHSA-2008:0261 |
| Red Hat Network Satellite 5 | rhn-modssl | 2.8.12-8.rhn.10.rhel4 | RHSA-2008:0261 |
| Red Hat Network Satellite 5 | tomcat5 | 5.0.30-0jpp_6rh | RHSA-2008:0261, RHSA-2007:1069 |
| Red Hat Network Satellite 5 | tyrex | 1.0.1-2jpp_2rh | RHSA-2007:1069 |
| Red Hat Network Satellite 4 | jabberd | 2.0s10-3.37.rhn | RHSA-2008:0524 |
| Red Hat Network Satellite 4 | jakarta-commons-pool | 1.2-2jpp_2rh | RHSA-2007:1069 |
| Red Hat Network Satellite 4 | java-1.4.2-ibm +1 | 1.4.2.10-1jpp.2.el3 | RHSA-2008:0524 |
| Red Hat Network Satellite 4 | jfreechart | 0.9.20-3.rhn | RHSA-2008:0524 |
| Red Hat Network Satellite 4 | openmotif21 | 2.1.30-9.RHEL3.8 | RHSA-2008:0524 |
| Red Hat Network Satellite 4 | perl-Crypt-CBC | 2.24-1.el3 | RHSA-2008:0524 |
| Red Hat Network Satellite 4 | rhn-apache | 1.3.27-36.rhn.rhel3 | RHSA-2008:0524 |
| Red Hat Network Satellite 4 | rhn-modjk-ap13 | 1.2.23-2rhn.rhel3 | RHSA-2008:0524 |
| Red Hat Network Satellite 4 | rhn-modperl | 1.29-16.rhel3 | RHSA-2008:0524 |
| Red Hat Network Satellite 4 | rhn-modssl | 2.8.12-8.rhn.10.rhel3 | RHSA-2008:0524 |
| Red Hat Network Satellite 4 | tomcat5 | 5.0.30-0jpp_6rh | RHSA-2008:0524, RHSA-2007:1069 |
| Red Hat Network Satellite 4 | tyrex | 1.0.1-2jpp_2rh | RHSA-2007:1069 |
| Red Hat Certificate System 7 | ant | 1.6.5-1jpp_1rh | RHSA-2010:0602 |
| Red Hat Certificate System 7 | avalon-logkit | 1.2-2jpp_4rh | RHSA-2010:0602 |
| Red Hat Certificate System 7 | axis | 1.2.1-1jpp_3rh | RHSA-2010:0602 |
| Red Hat Certificate System 7 | classpathx-jaf | 1.0-2jpp_6rh | RHSA-2010:0602 |
| Red Hat Certificate System 7 | classpathx-mail | 1.1.1-2jpp_8rh | RHSA-2010:0602 |
| Red Hat Certificate System 7 | geronimo-specs +10 | 1.0-0.M4.1jpp_10rh | RHSA-2010:0602 |
| Red Hat Certificate System 7 | jakarta-commons-modeler | 2.0-3jpp_2rh | RHSA-2010:0602 |
| Red Hat Certificate System 7 | log4j | 1.2.12-1jpp_1rh | RHSA-2010:0602 |
| Red Hat Certificate System 7 | mx4j | 1:3.0.1-1jpp_4rh | RHSA-2010:0602 |
| Red Hat Certificate System 7 | pcsc-lite +2 | 1.3.3-3.el4 | RHSA-2010:0602 |
| Red Hat Certificate System 7 | rhpki-ca | 7.3.0-20.el4 | RHSA-2010:0602 |
| Red Hat Certificate System 7 | rhpki-java-tools | 7.3.0-10.el4 | RHSA-2010:0602 |
| Red Hat Certificate System 7 | rhpki-kra | 7.3.0-14.el4 | RHSA-2010:0602 |
| Red Hat Certificate System 7 | rhpki-manage | 7.3.0-19.el4 | RHSA-2010:0602 |
| Red Hat Certificate System 7 | rhpki-native-tools | 7.3.0-6.el4 | RHSA-2010:0602 |
| Red Hat Certificate System 7 | rhpki-tks +1 | 7.3.0-13.el4 | RHSA-2010:0602 |
| Red Hat Certificate System 7 | tomcat5 +5 | 5.5.23-0jpp_4rh.16 | RHSA-2010:0602 |
| Red Hat Certificate System 7 | xerces-j2 | 2.7.1-1jpp_1rh | RHSA-2010:0602 |
| Red Hat Certificate System 7 | xml-commons +1 | 1.3.02-2jpp_1rh | RHSA-2010:0602 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Maven | org.apache.tomcat:tomcat | >= 5.0.0, <= 5.0.19 | — | GHSA-f2gq-p6qv-ccw4 |
| Maven | org.apache.tomcat:tomcat | >= 4.0.0, <= 4.1.24 | — | GHSA-f2gq-p6qv-ccw4 |
Advisories 9
- RHSA-2010:0602 Red Hat Security Advisory: Red Hat Certificate System 7.3 security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2008:0524 Red Hat Security Advisory: Red Hat Network Satellite Server security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2008:0261 Red Hat Security Advisory: Red Hat Network Satellite Server security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2007:0327 Red Hat Security Advisory: tomcat security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2007:0326 Red Hat Security Advisory: tomcat security update Red Hat Security Advisories (RHSA) · Jan 7, 2026
- RHSA-2007:0340 Red Hat Security Advisory: tomcat security update Red Hat Security Advisories (RHSA) · Jan 7, 2026
- RHSA-2007:1069 Red Hat Security Advisory: tomcat security update for Red Hat Network Satellite Server Red Hat Security Advisories (RHSA) · Jan 7, 2026
- RHSA-2007:0360 Red Hat Security Advisory: jbossas security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2007:0328 Red Hat Security Advisory: tomcat security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
References
- http://www.fujitsu.com/global/support/software/security/products-f/interstage-200703e.html
- http://tomcat.apache.org/security-4.html
- 30908 third-party-advisory
- [Security-announce] 20080107 VMSA-2008-0002 Low severity security update for VirtualCenter and ESX Server 3.0.2, and ESX 3.0.1 mailing-list
- ADV-2007-2732 vdb-entry
- 13873 vdb-entry
- 239312 vendor-advisory
- ADV-2007-3087 vdb-entry
- 30899 third-party-advisory
- 29242 third-party-advisory
- ADV-2008-1979 vdb-entry
- APPLE-SA-2007-07-31 vendor-advisory
- ADV-2008-0065 vdb-entry
- 20090127 CA20090123-01: Cohesion Tomcat Multiple Vulnerabilities (Updated - v1.1) mailing-list
- SUSE-SR:2008:005 vendor-advisory
- 33668 third-party-advisory
- 20080108 VMSA-2008-0002 Low severity security update for VirtualCenter and ESX Server 3.0.2, and ESX 3.0.1 mailing-list
- 20090124 CA20090123-01: Cohesion Tomcat Multiple Vulnerabilities mailing-list
- RHSA-2007:0360 vendor-advisory
- ADV-2009-0233 vdb-entry
- oval:org.mitre.oval:def:10499 vdb-entry signature
- 28365 third-party-advisory
- http://support.avaya.com/elmodocs2/security/ASA-2007-206.htm
- http://tomcat.apache.org/security-6.html
- ADV-2007-3386 vdb-entry
- http://www.securiteam.com/securityreviews/5GP0220G0U.html
- http://www.watchfire.com/resources/HTTP-Request-Smuggling.pdf
- RHSA-2007:0327 vendor-advisory
- 27037 third-party-advisory
- 1014365 vdb-entry
- http://docs.info.apple.com/article.html?artnum=306172
- SSRT071447 vendor-advisory
- http://tomcat.apache.org/security-5.html
- 25159 vdb-entry
- 26660 third-party-advisory
- RHSA-2008:0261 vendor-advisory
- 20050606 A new whitepaper by Watchfire - HTTP Request Smuggling mailing-list
- http://community.ca.com/blogs/casecurityresponseblog/archive/2009/01/23.aspx
- http://support.ca.com/irj/portal/anonymous/phpsupcontent?contentID=197540
- 26235 third-party-advisory
- [tomcat-dev] 20190319 svn commit: r1855831 [21/30] - in /tomcat/site/trunk: ./ docs/ xdocs/ mailing-list
- [tomcat-dev] 20190319 svn commit: r1855831 [23/30] - in /tomcat/site/trunk: ./ docs/ xdocs/ mailing-list
- [tomcat-dev] 20190325 svn commit: r1856174 [19/29] - in /tomcat/site/trunk: docs/ xdocs/ xdocs/stylesheets/ mailing-list
- [tomcat-dev] 20190325 svn commit: r1856174 [21/29] - in /tomcat/site/trunk: docs/ xdocs/ xdocs/stylesheets/ mailing-list
- [tomcat-dev] 20190413 svn commit: r1857494 [15/20] - in /tomcat/site/trunk: ./ docs/ xdocs/ mailing-list
- [tomcat-dev] 20190415 svn commit: r1857582 [16/22] - in /tomcat/site/trunk: docs/ xdocs/stylesheets/ mailing-list
- [tomcat-dev] 20200203 svn commit: r1873527 [23/30] - /tomcat/site/trunk/docs/ mailing-list
- [tomcat-dev] 20200213 svn commit: r1873980 [24/34] - /tomcat/site/trunk/docs/ mailing-list
- [tomcat-dev] 20200213 svn commit: r1873980 [26/34] - /tomcat/site/trunk/docs/ mailing-list