CVE-2011-3186 is a CRLF injection vulnerability in Ruby on Rails versions 2.3.x prior to 2.3.13, specifically within the actionpack/lib/action_controller/response.rb component. This flaw allows remote attackers to inject arbitrary HTTP headers through the Content-Type header, leading to HTTP response splitting attacks. The vulnerability has a CVSS score of 4.3 (Medium), indicating a network-based attack with medium complexity, requiring no authentication, and primarily impacting integrity (partial). There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
2.3.2CPE matchmatch criteria | cpe:2.3:a:rubyonrails:rails:2.3.2:*:*:*:*:*:*:* | ||
2.3.3CPE matchmatch criteria | cpe:2.3:a:rubyonrails:rails:2.3.3:*:*:*:*:*:*:* | ||
2.3.4CPE matchmatch criteria | cpe:2.3:a:rubyonrails:rails:2.3.4:*:*:*:*:*:*:* | ||
2.3.9CPE matchmatch criteria | cpe:2.3:a:rubyonrails:rails:2.3.9:*:*:*:*:*:*:* | ||
2.3.10CPE matchmatch criteria | cpe:2.3:a:rubyonrails:rails:2.3.10:*:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:M/Au:N/C:N/I:P/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.