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CVE-2008-5189

15
FAUCET Score

CVE-2008-5189 describes a CRLF injection vulnerability in Ruby on Rails versions prior to 2.0.5. This flaw allows remote attackers to inject arbitrary HTTP headers and perform HTTP response splitting attacks by manipulating the redirect_to function with a crafted URL. With a CVSS score of 5.0, this vulnerability is of medium severity, requiring no authentication and having low attack complexity, primarily impacting integrity. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
0.9.1CPE matchmatch criteria
cpe:2.3:a:rubyonrails:rails:0.9.1:*:*:*:*:*:*:*
0.9.2CPE matchmatch criteria
cpe:2.3:a:rubyonrails:rails:0.9.2:*:*:*:*:*:*:*
0.9.3CPE matchmatch criteria
cpe:2.3:a:rubyonrails:rails:0.9.3:*:*:*:*:*:*:*
0.9.4CPE matchmatch criteria
cpe:2.3:a:rubyonrails:rails:0.9.4:*:*:*:*:*:*:*
0.9.4.1CPE matchmatch criteria
cpe:2.3:a:rubyonrails:rails:0.9.4.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:P/A:N

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.55%
Probability of exploitation in next 30 days
EPSS Percentile
72.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0155 is in the 55th percentile among its peer group of 23,705 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media 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.

Remediation

Patch Available

Vendor Patches (1)

rubygemspatch availablevia ghsa
Product: railsFixed in: 2.0.5

Vendor Advisories (2)

rubygemsGHSA-jmgf-p46x-982hmedium

rails is vulnerable to CRLF injection

Oct 24, 2017
redhatCVE-2008-5189Low

rubygems-actionpack: redirect HTTP header injection vulnerability

Oct 14, 2008

References

github.com / rails/rails/commit/7282ed863ca7e6f928bae9162c9a63a98775a19d
lists.opensuse.org / opensuse-security-announce/2008-12/msg00002.html
weblog.rubyonrails.org / 2008/10/19/rails-2-0-5-redirect_to-and-offset-limit-sanitizing
Vendor Advisory
weblog.rubyonrails.org / 2008/10/19/response-splitting-risk
securityfocus.com / bid/32359
Patch