CVE-2008-5189

CRLF injection vulnerability in Ruby on Rails before 2.0.5 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via a crafted URL to the redirect_to function.

Published: 2008-11-21 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2008-5189 is rated Moderate Risk (40.2/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.34%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2008-5189

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-03 0.13% 0.34% +0.21%
2 2026-06-01 0.15% 0.13% -0.02%
3 2025-03-30 — 0.15% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2008-5189

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2008-5189

GitHub Security Advisory for CVE-2008-5189

GHSA-jmgf-p46x-982h · Severity: medium · Ecosystem: rubygems — rails is vulnerable to CRLF injection

OS Trackers for CVE-2008-5189

vendor priority summary link
debian low CVE-2008-5189 low priority: Debian including 1 source packages (rails), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2008-5189
redhat low — https://access.redhat.com/security/cve/CVE-2008-5189
ubuntu low CVE-2008-5189 low priority: Ubuntu including 1 source packages (rails), 10 status rows across 10 suites (dapper, gutsy, hardy, intrepid, jaunty, karmic, lucid, maverick, natty, upstream): not-affected 6, ignored 3, released 1. https://ubuntu.com/security/CVE-2008-5189

Affected software / configurations for CVE-2008-5189

Vendor Product Version Raw CPE
rubyonrails rails 0.9.1 cpe:2.3:a:rubyonrails:rails:0.9.1:*:*:*:*:*:*:*
rubyonrails rails 0.9.2 cpe:2.3:a:rubyonrails:rails:0.9.2:*:*:*:*:*:*:*
rubyonrails rails 0.9.3 cpe:2.3:a:rubyonrails:rails:0.9.3:*:*:*:*:*:*:*
rubyonrails rails 0.9.4 cpe:2.3:a:rubyonrails:rails:0.9.4:*:*:*:*:*:*:*
rubyonrails rails 0.9.4.1 cpe:2.3:a:rubyonrails:rails:0.9.4.1:*:*:*:*:*:*:*
rubyonrails rails 0.10.0 cpe:2.3:a:rubyonrails:rails:0.10.0:*:*:*:*:*:*:*
rubyonrails rails 0.10.1 cpe:2.3:a:rubyonrails:rails:0.10.1:*:*:*:*:*:*:*
rubyonrails rails 0.11.0 cpe:2.3:a:rubyonrails:rails:0.11.0:*:*:*:*:*:*:*
rubyonrails rails 0.11.1 cpe:2.3:a:rubyonrails:rails:0.11.1:*:*:*:*:*:*:*
rubyonrails rails 0.12.0 cpe:2.3:a:rubyonrails:rails:0.12.0:*:*:*:*:*:*:*
rubyonrails rails 0.12.1 cpe:2.3:a:rubyonrails:rails:0.12.1:*:*:*:*:*:*:*
rubyonrails rails 0.13.0 cpe:2.3:a:rubyonrails:rails:0.13.0:*:*:*:*:*:*:*
rubyonrails rails 0.13.1 cpe:2.3:a:rubyonrails:rails:0.13.1:*:*:*:*:*:*:*
rubyonrails rails 0.14.1 cpe:2.3:a:rubyonrails:rails:0.14.1:*:*:*:*:*:*:*
rubyonrails rails 0.14.2 cpe:2.3:a:rubyonrails:rails:0.14.2:*:*:*:*:*:*:*
rubyonrails rails 0.14.3 cpe:2.3:a:rubyonrails:rails:0.14.3:*:*:*:*:*:*:*
rubyonrails rails 0.14.4 cpe:2.3:a:rubyonrails:rails:0.14.4:*:*:*:*:*:*:*
rubyonrails rails 1.0.0 cpe:2.3:a:rubyonrails:rails:1.0.0:*:*:*:*:*:*:*
rubyonrails rails 1.1.0 cpe:2.3:a:rubyonrails:rails:1.1.0:*:*:*:*:*:*:*
rubyonrails rails 1.1.1 cpe:2.3:a:rubyonrails:rails:1.1.1:*:*:*:*:*:*:*
rubyonrails rails 1.1.2 cpe:2.3:a:rubyonrails:rails:1.1.2:*:*:*:*:*:*:*
rubyonrails rails 1.1.3 cpe:2.3:a:rubyonrails:rails:1.1.3:*:*:*:*:*:*:*
rubyonrails rails 1.1.4 cpe:2.3:a:rubyonrails:rails:1.1.4:*:*:*:*:*:*:*
rubyonrails rails 1.1.5 cpe:2.3:a:rubyonrails:rails:1.1.5:*:*:*:*:*:*:*
rubyonrails rails 1.1.6 cpe:2.3:a:rubyonrails:rails:1.1.6:*:*:*:*:*:*:*
rubyonrails rails 1.2.0 cpe:2.3:a:rubyonrails:rails:1.2.0:*:*:*:*:*:*:*
rubyonrails rails 1.2.1 cpe:2.3:a:rubyonrails:rails:1.2.1:*:*:*:*:*:*:*
rubyonrails rails 1.2.2 cpe:2.3:a:rubyonrails:rails:1.2.2:*:*:*:*:*:*:*
rubyonrails rails 1.2.3 cpe:2.3:a:rubyonrails:rails:1.2.3:*:*:*:*:*:*:*
rubyonrails rails 1.2.4 cpe:2.3:a:rubyonrails:rails:1.2.4:*:*:*:*:*:*:*
rubyonrails rails 1.2.5 cpe:2.3:a:rubyonrails:rails:1.2.5:*:*:*:*:*:*:*
rubyonrails rails 1.2.6 cpe:2.3:a:rubyonrails:rails:1.2.6:*:*:*:*:*:*:*
rubyonrails rails 1.9.5 cpe:2.3:a:rubyonrails:rails:1.9.5:*:*:*:*:*:*:*
rubyonrails rails 2.0.0 cpe:2.3:a:rubyonrails:rails:2.0.0:*:*:*:*:*:*:*
rubyonrails rails 2.0.0 cpe:2.3:a:rubyonrails:rails:2.0.0:rc1:*:*:*:*:*:*
rubyonrails rails 2.0.0 cpe:2.3:a:rubyonrails:rails:2.0.0:rc2:*:*:*:*:*:*
rubyonrails rails 2.0.1 cpe:2.3:a:rubyonrails:rails:2.0.1:*:*:*:*:*:*:*
rubyonrails rails 2.0.2 cpe:2.3:a:rubyonrails:rails:2.0.2:*:*:*:*:*:*:*
rubyonrails ruby_on_rails <= 2.0.4 cpe:2.3:a:rubyonrails:ruby_on_rails:*:*:*:*:*:*:*:*
rubyonrails ruby_on_rails 0.5.0 cpe:2.3:a:rubyonrails:ruby_on_rails:0.5.0:*:*:*:*:*:*:*
rubyonrails ruby_on_rails 0.5.5 cpe:2.3:a:rubyonrails:ruby_on_rails:0.5.5:*:*:*:*:*:*:*
rubyonrails ruby_on_rails 0.5.6 cpe:2.3:a:rubyonrails:ruby_on_rails:0.5.6:*:*:*:*:*:*:*
rubyonrails ruby_on_rails 0.5.7 cpe:2.3:a:rubyonrails:ruby_on_rails:0.5.7:*:*:*:*:*:*:*
rubyonrails ruby_on_rails 0.6.0 cpe:2.3:a:rubyonrails:ruby_on_rails:0.6.0:*:*:*:*:*:*:*
rubyonrails ruby_on_rails 0.6.5 cpe:2.3:a:rubyonrails:ruby_on_rails:0.6.5:*:*:*:*:*:*:*
rubyonrails ruby_on_rails 0.7.0 cpe:2.3:a:rubyonrails:ruby_on_rails:0.7.0:*:*:*:*:*:*:*
rubyonrails ruby_on_rails 0.8.0 cpe:2.3:a:rubyonrails:ruby_on_rails:0.8.0:*:*:*:*:*:*:*
rubyonrails ruby_on_rails 0.8.5 cpe:2.3:a:rubyonrails:ruby_on_rails:0.8.5:*:*:*:*:*:*:*
rubyonrails ruby_on_rails 0.9.0 cpe:2.3:a:rubyonrails:ruby_on_rails:0.9.0:*:*:*:*:*:*:*

References for CVE-2008-5189

cvelogic Threat Intelligence