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Servers and applications

CVE-2015-3183

The chunked transfer coding implementation in the Apache HTTP Server before 2.4.14 does not properly parse chunk headers, which allows remote attackers to conduct HTTP request smuggling attacks via a crafted request, related to mishandling of large chunk-size values and invalid chunk-extension characters in modules/http/http_filters.c.

Severity
Medium 5.0
Published
20 Jul 2015
Last changed
17 Jun 2026
Added to UpHeron
17 Oct 2026
Fixed in
2.2.31, 2.4.16
Sources
NVD

Affected software

SoftwareAffected versions
Apache HTTP ServerServers and applications · cpe:a:apache:http_server
  • From 2.2.0 before 2.2.31
  • From 2.4.0 before 2.4.16

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2015-3183
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2015-3183