{"cve":"CVE-2013-5704","nvd":{"published":"2014-04-15T10:55:11.150","modified":"2026-06-16T23:59:16.463","status":"Modified","description":"The mod_headers module in the Apache HTTP Server 2.2.22 allows remote attackers to bypass \"RequestHeader unset\" directives by placing a header in the trailer portion of data sent with chunked transfer coding.  NOTE: the vendor states \"this is not a security issue in httpd as such.\"","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["http://lists.apple.com/archives/security-announce/2015/Apr/msg00001.html","http://lists.apple.com/archives/security-announce/2015/Sep/msg00004.html","http://marc.info/?l=apache-httpd-dev&m=139636309822854&w=2","http://marc.info/?l=bugtraq&m=143403519711434&w=2","http://marc.info/?l=bugtraq&m=144493176821532&w=2"],"products":["apache:http_server","apple:mac_os_x","apple:mac_os_x_server","canonical:ubuntu_linux","oracle:enterprise_manager_ops_center","oracle:http_server","oracle:linux","oracle:solaris","redhat:enterprise_linux_desktop","redhat:enterprise_linux_eus","redhat:enterprise_linux_server","redhat:enterprise_linux_server_aus","redhat:enterprise_linux_server_tus","redhat:enterprise_linux_workstation","redhat:jboss_enterprise_web_server"],"source":"nvd","synced_at":"2026-10-19T20:32:06.812358378+00:00"},"epss":{"cve":"CVE-2013-5704","score":0.57992,"percentile":0.99088,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}