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    CVE-2005-2090

    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."

    Published:Jun 6, 2005
    Last Modified:Apr 16, 2026
    EPS:Jun 30, 2005
    EPSS Score:0.81971
    CVSS Score:4.3

    Affected Products

    Vendor
    Apache
    Product
    Tomcat
    Vendor
    Redhat
    Product
    Certificate System
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Network Satellite
    Vendor
    Redhat
    Product
    Rhel Application Server
    Vendor
    Redhat
    Product
    Rhel Application Stack
    Vendor
    Redhat
    Product
    Rhel Developer Suite

    Exploits

    http://www.securiteam.com/securityreviews/5GP0220G0U.htmlhttp://www.securiteam.com/securityreviews/5GP0220G0U.html

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-73180 (CVSS 6.8) — Insufficient Session Expiration vulnerability in Apache Tomcat meant that if the session ID for an authenticat…
    CVE-2026-68763 (CVSS 7.5) — Uncontrolled Resource Consumption vulnerability in Apache Tomcat via an allocation leak in the HTTP/2 backlog …
    CVE-2026-68569 (CVSS 8.1) — Improper Authentication vulnerability in Apache Tomcat meant that in some circumstances (e.g. CLIENT-CERT, SPN…
    CVE-2026-68525 (CVSS 9.1) — Incorrect Authorization vulnerability in Apache Tomcat's FORM authentication process allows the bypassing of a…
    CVE-2026-66422 (CVSS 8.1) — Improper Authorization vulnerability in Apache Tomcat cause by security-role-ref definitions being incorrectly…
    CVE-2026-65927 (CVSS 7.5) — Off-by-one Error vulnerability in Apache Tomcat impacting the [N] flag on the rewrite valves causes rewrite pr…
    CVE-2026-65905 (CVSS 9.8) — Authentication Bypass by Capture-replay vulnerability in Apache Tomcat's DIGEST authenticator. If, before wind…
    CVE-2026-65637 (CVSS 9.8) — Improper Input Validation vulnerability in Apache Tomcat due to incomplete fix for CVE-2026-32990. This iss…
    CVE-2026-65183 (CVSS 8.1) — Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability in Apache Tomcat when creating unix domain soc…
    CVE-2026-65182 (CVSS 9.1) — Improper Access Control, Incorrect Authorization vulnerability in Apache Tomcat leads to security constraint b…

    References

    http://community.ca.com/blogs/casecurityresponseblog/archive/2009/01/23.aspx
    http://docs.info.apple.com/article.html?artnum=306172
    http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c01178795
    http://lists.apple.com/archives/security-announce//2007/Jul/msg00004.html
    http://lists.opensuse.org/opensuse-security-announce/2008-03/msg00001.html
    http://lists.vmware.com/pipermail/security-announce/2008/000003.html
    http://seclists.org/lists/bugtraq/2005/Jun/0025.html
    http://secunia.com/advisories/26235
    http://secunia.com/advisories/26660
    http://secunia.com/advisories/27037
    http://secunia.com/advisories/28365
    http://secunia.com/advisories/29242
    http://secunia.com/advisories/30899
    http://secunia.com/advisories/30908
    http://secunia.com/advisories/33668
    http://securitytracker.com/id?1014365
    http://sunsolve.sun.com/search/document.do?assetkey=1-26-239312-1
    http://support.avaya.com/elmodocs2/security/ASA-2007-206.htm
    http://support.ca.com/irj/portal/anonymous/phpsupcontent?contentID=197540
    http://tomcat.apache.org/security-4.html
    http://tomcat.apache.org/security-5.html
    http://tomcat.apache.org/security-6.html
    http://www.fujitsu.com/global/support/software/security/products-f/interstage-200703e.html
    http://www.redhat.com/support/errata/RHSA-2007-0327.html
    http://www.redhat.com/support/errata/RHSA-2007-0360.html
    http://www.redhat.com/support/errata/RHSA-2008-0261.html
    http://www.securiteam.com/securityreviews/5GP0220G0U.html
    http://www.securityfocus.com/archive/1/485938/100/0/threaded
    http://www.securityfocus.com/archive/1/500396/100/0/threaded
    http://www.securityfocus.com/archive/1/500412/100/0/threaded
    http://www.securityfocus.com/bid/13873
    http://www.securityfocus.com/bid/25159
    http://www.vupen.com/english/advisories/2007/2732
    http://www.vupen.com/english/advisories/2007/3087
    http://www.vupen.com/english/advisories/2007/3386
    http://www.vupen.com/english/advisories/2008/0065
    http://www.vupen.com/english/advisories/2008/1979/references
    http://www.vupen.com/english/advisories/2009/0233
    http://www.watchfire.com/resources/HTTP-Request-Smuggling.pdf
    https://lists.apache.org/thread.html/29dc6c2b625789e70a9c4756b5a327e6547273ff8bde7e0327af48c5%40%3Cdev.tomcat.apache.org%3E
    https://lists.apache.org/thread.html/37220405a377c0182d2afdbc36461c4783b2930fbeae3a17f1333113%40%3Cdev.tomcat.apache.org%3E
    https://lists.apache.org/thread.html/39ae1f0bd5867c15755a6f959b271ade1aea04ccdc3b2e639dcd903b%40%3Cdev.tomcat.apache.org%3E
    https://lists.apache.org/thread.html/b84ad1258a89de5c9c853c7f2d3ad77e5b8b2930be9e132d5cef6b95%40%3Cdev.tomcat.apache.org%3E
    https://lists.apache.org/thread.html/b8a1bf18155b552dcf9a928ba808cbadad84c236d85eab3033662cfb%40%3Cdev.tomcat.apache.org%3E
    https://lists.apache.org/thread.html/c62b0e3a7bf23342352a5810c640a94b6db69957c5c19db507004d74%40%3Cdev.tomcat.apache.org%3E
    https://lists.apache.org/thread.html/r03c597a64de790ba42c167efacfa23300c3d6c9fe589ab87fe02859c%40%3Cdev.tomcat.apache.org%3E
    https://lists.apache.org/thread.html/r587e50b86c1a96ee301f751d50294072d142fd6dc08a8987ae9f3a9b%40%3Cdev.tomcat.apache.org%3E
    https://lists.apache.org/thread.html/rb71997f506c6cc8b530dd845c084995a9878098846c7b4eacfae8db3%40%3Cdev.tomcat.apache.org%3E
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10499
    http://community.ca.com/blogs/casecurityresponseblog/archive/2009/01/23.aspx
    http://docs.info.apple.com/article.html?artnum=306172
    http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c01178795
    http://lists.apple.com/archives/security-announce//2007/Jul/msg00004.html
    http://lists.opensuse.org/opensuse-security-announce/2008-03/msg00001.html
    http://lists.vmware.com/pipermail/security-announce/2008/000003.html
    http://seclists.org/lists/bugtraq/2005/Jun/0025.html
    http://secunia.com/advisories/26235
    http://secunia.com/advisories/26660
    http://secunia.com/advisories/27037
    http://secunia.com/advisories/28365
    http://secunia.com/advisories/29242
    http://secunia.com/advisories/30899
    http://secunia.com/advisories/30908
    http://secunia.com/advisories/33668
    http://securitytracker.com/id?1014365
    http://sunsolve.sun.com/search/document.do?assetkey=1-26-239312-1
    http://support.avaya.com/elmodocs2/security/ASA-2007-206.htm
    http://support.ca.com/irj/portal/anonymous/phpsupcontent?contentID=197540
    http://tomcat.apache.org/security-4.html
    http://tomcat.apache.org/security-5.html
    http://tomcat.apache.org/security-6.html
    http://www.fujitsu.com/global/support/software/security/products-f/interstage-200703e.html
    http://www.redhat.com/support/errata/RHSA-2007-0327.html
    http://www.redhat.com/support/errata/RHSA-2007-0360.html
    http://www.redhat.com/support/errata/RHSA-2008-0261.html
    http://www.securiteam.com/securityreviews/5GP0220G0U.html
    http://www.securityfocus.com/archive/1/485938/100/0/threaded
    http://www.securityfocus.com/archive/1/500396/100/0/threaded
    http://www.securityfocus.com/archive/1/500412/100/0/threaded
    http://www.securityfocus.com/bid/13873
    http://www.securityfocus.com/bid/25159
    http://www.vupen.com/english/advisories/2007/2732
    http://www.vupen.com/english/advisories/2007/3087
    http://www.vupen.com/english/advisories/2007/3386
    http://www.vupen.com/english/advisories/2008/0065
    http://www.vupen.com/english/advisories/2008/1979/references
    http://www.vupen.com/english/advisories/2009/0233
    http://www.watchfire.com/resources/HTTP-Request-Smuggling.pdf
    https://lists.apache.org/thread.html/29dc6c2b625789e70a9c4756b5a327e6547273ff8bde7e0327af48c5%40%3Cdev.tomcat.apache.org%3E
    https://lists.apache.org/thread.html/37220405a377c0182d2afdbc36461c4783b2930fbeae3a17f1333113%40%3Cdev.tomcat.apache.org%3E
    https://lists.apache.org/thread.html/39ae1f0bd5867c15755a6f959b271ade1aea04ccdc3b2e639dcd903b%40%3Cdev.tomcat.apache.org%3E
    https://lists.apache.org/thread.html/b84ad1258a89de5c9c853c7f2d3ad77e5b8b2930be9e132d5cef6b95%40%3Cdev.tomcat.apache.org%3E
    https://lists.apache.org/thread.html/b8a1bf18155b552dcf9a928ba808cbadad84c236d85eab3033662cfb%40%3Cdev.tomcat.apache.org%3E
    https://lists.apache.org/thread.html/c62b0e3a7bf23342352a5810c640a94b6db69957c5c19db507004d74%40%3Cdev.tomcat.apache.org%3E
    https://lists.apache.org/thread.html/r03c597a64de790ba42c167efacfa23300c3d6c9fe589ab87fe02859c%40%3Cdev.tomcat.apache.org%3E
    https://lists.apache.org/thread.html/r587e50b86c1a96ee301f751d50294072d142fd6dc08a8987ae9f3a9b%40%3Cdev.tomcat.apache.org%3E
    https://lists.apache.org/thread.html/rb71997f506c6cc8b530dd845c084995a9878098846c7b4eacfae8db3%40%3Cdev.tomcat.apache.org%3E
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10499

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High