CVE-2011-3186

CRLF injection vulnerability in actionpack/lib/action_controller/response.rb in Ruby on Rails 2.3.x before 2.3.13 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via the Content-Type header.

• CWE-94

• http://groups.google.com/group/rubyonrails-security/msg/bbe342e43abaa78c?dmode=source&output=gplainPatch
• http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065137.html
• http://secunia.com/advisories/45921
• http://www.debian.org/security/2011/dsa-2301
• http://www.openwall.com/lists/oss-security/2011/08/17/1Patch
• http://www.openwall.com/lists/oss-security/2011/08/19/11Patch
• http://www.openwall.com/lists/oss-security/2011/08/20/1Patch
• http://www.openwall.com/lists/oss-security/2011/08/22/13Patch
• http://www.openwall.com/lists/oss-security/2011/08/22/14
• http://www.openwall.com/lists/oss-security/2011/08/22/5Patch
• https://bugzilla.redhat.com/show_bug.cgi?id=732156Patch
• https://github.com/rails/rails/commit/11dafeaa7533be26441a63618be93a03869c83a9Patch
• http://groups.google.com/group/rubyonrails-security/msg/bbe342e43abaa78c?dmode=source&output=gplainPatch
• http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065137.html
• http://secunia.com/advisories/45921
• http://www.debian.org/security/2011/dsa-2301
• http://www.openwall.com/lists/oss-security/2011/08/17/1Patch
• http://www.openwall.com/lists/oss-security/2011/08/19/11Patch
• http://www.openwall.com/lists/oss-security/2011/08/20/1Patch
• http://www.openwall.com/lists/oss-security/2011/08/22/13Patch
• http://www.openwall.com/lists/oss-security/2011/08/22/14
• http://www.openwall.com/lists/oss-security/2011/08/22/5Patch
• https://bugzilla.redhat.com/show_bug.cgi?id=732156Patch
• https://github.com/rails/rails/commit/11dafeaa7533be26441a63618be93a03869c83a9Patch

Published

Aug 29, 2011

Last Modified

Jun 16, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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