VULNERABILITY INTELLIGENCE
CVE-2013-4286
CVSS score5.8 MEDIUM
EPSS probability16.83%
CISA KEVNot currently listed
Published2014-02-26
Last modified2026-10-09
CVSS vectorAV:N/AC:M/Au:N/C:P/I:P/A:N
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.
Weakness classification
- CWE-20: Improper Input Validation