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CVE-2011-0449

actionpack allows remote attackers to bypass intended access restrictions

7.5 HighFix available

actionpack/lib/action_view/template/resolver.rb in Ruby on Rails 3.0.x before 3.0.4, when a case-insensitive filesystem is used, does not properly implement filters associated with the list of available templates, which allows remote attackers to bypass intended access restrictions via an action name that uses an unintended case for alphabetic characters.

Exploit likelihood

2.50%Up 1.2 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 7.5

actionpack/lib/action_view/template/resolver.rb in Ruby on Rails 3.0.x before 3.0.4, when a case-insensitive filesystem is used, does not properly implement filters associated with the list of available templates, which allows remote attackers to bypass intended access restrictions via an action name that uses an unintended case for alphabetic characters.

Record
CVE-2011-0449
CVSS 2.0
7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness
CWE-264
Updated
2026-11-02
CVE List No score

actionpack/lib/action_view/template/resolver.rb in Ruby on Rails 3.0.x before 3.0.4, when a case-insensitive filesystem is used, does not properly implement filters associated with the list of available templates, which allows remote attackers to bypass intended access restrictions via an action name that uses an unintended case for alphabetic characters.

Record
CVE-2011-0449
Updated
2026-11-02
EUVDEUVD-2017-0164 No score

actionpack/lib/action_view/template/resolver.rb in Ruby on Rails 3.0.x before 3.0.4, when a case-insensitive filesystem is used, does not properly implement filters associated with the list of available templates, which allows remote attackers to bypass intended access restrictions via an action name that uses an unintended case for alphabetic characters.

Record
EUVD-2017-0164
Updated
2026-11-03
GitHub AdvisoriesGHSA-4ww3-3rxj-8v6q No score

actionpack allows remote attackers to bypass intended access restrictions

actionpack/lib/action_view/template/resolver.rb in Ruby on Rails 3.0.x before 3.0.4, when a case-insensitive filesystem is used, does not properly implement filters associated with the list of available templates, which allows remote attackers to bypass intended access restrictions via an action name that uses an unintended case for alphabetic characters.

Record
GHSA-4ww3-3rxj-8v6q
Updated
2026-11-02
OSVGHSA-4ww3-3rxj-8v6q No score

actionpack allows remote attackers to bypass intended access restrictions

actionpack/lib/action_view/template/resolver.rb in Ruby on Rails 3.0.x before 3.0.4, when a case-insensitive filesystem is used, does not properly implement filters associated with the list of available templates, which allows remote attackers to bypass intended access restrictions via an action name that uses an unintended case for alphabetic characters.

Record
GHSA-4ww3-3rxj-8v6q
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
actionpack
RubyGems
3.0.0 up to 3.0.4
3.0.4
actionpack
RubyGems
3.0.0 up to 3.0.4, plus listed versions
3.0.13.0.23.0.33.0.4.rc1
3.0.4

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2011-0449 is a high vulnerability (CVSS 7.5) in Rubyonrails Rails, published February 21, 2011. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.50%, the 84th percentile. Fixed in actionpack 3.0.4.

References

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