Active Model in Ruby on Rails 4.1.x before 4.1.14.1, 4.2.x before 4.2.5.1, and 5.x before 5.0.0.beta1.1 supports the use of instance-level writers for class accessors, which allows remote attackers to bypass intended validation steps via crafted parameters.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade ruby-activesupport-3.2Upgrade ruby-activerecord-3.2Upgrade ruby-activemodel-3.2Upgrade rails | Feb 15, 2016 | Jan 31, 2016 |
| Freebsd | — | Upgrade rubygem-activerecordUpgrade rubygem-rails-html-sanitizerUpgrade rubygem-actionpack4Upgrade rubygem-rails4Upgrade rubygem-actionviewUpgrade rubygem-activemodel4Upgrade rubygem-activerecord4Upgrade rubygem-actionpackUpgrade rubygem-rails | Dec 10, 2025 | Feb 2, 2016 |
| Ruby_on_rails | — | Upgrade to the latest version of Ruby on Rails | Jan 3, 2020 | Feb 16, 2016 |
| Suse | — | Upgrade portus | Feb 11, 2016 | Feb 11, 2016 |
| Ubuntu | — | Upgrade rails | Nov 19, 2024 | Feb 16, 2016 |
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