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CVE-2013-4286

MEDIUM · CVSS 5.8EPSS 16.2%EU EUVD

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.

Key facts

CVSS score
5.8 (v2.0)
Severity
MEDIUM
CVSS vector
AV:N/AC:M/Au:N/C:P/I:P/A:N
Weakness (CWE)
CWE-20
EPSS score
16.2% (97th percentile)
In CISA KEV
No
In EU EUVD
Yes (EUVD-2022-4269)
Published
February 26, 2014
NVD last modified
October 9, 2026
Status
Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2022-4269 in the EU Vulnerability Database. Last updated in EUVD on October 9, 2026.

View on the EU Vulnerability Database

Affected products

  • apache / tomcat
  • apache / tomcat
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and 133 more…

References

Last updated October 11, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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