Rubyonrails vulnerabilities3 known to be exploited.
Rubyonrails has 137 published vulnerabilities across 15 products in our catalogue. 3 of them are on the list of flaws known to be exploited, so criminals are using them now. The most affected product is Rails, with 113. If you run Rubyonrails software, patch the exploited flaws first.
The most recent Rubyonrails flaw added to the known-exploited list is CVE-2019-5418, on 7 July 2025. We keep watching the known-exploited list.
Which Rubyonrails products have the most vulnerabilities?
Rails leads with 113 published vulnerabilities. Open a product to see its versions and which of its flaws criminals are already using.
Which Rubyonrails vulnerabilities are being exploited?
3 flaws are on the government list of vulnerabilities known to be exploited. These are the ones criminals are using now, so they go first, whatever their severity score says.
- 7.5Rails Ruby on Rails Path Traversal Vulnerability
Rails Ruby on Rails contains a path traversal vulnerability in Action View.
- 7.5Ruby on Rails Directory Traversal Vulnerability
Directory traversal vulnerability in actionpack/lib/abstract_controller/base.rb in the implicit-render implementation in Ruby on Rails allows remote attackers to read arbitrary files via a crafted request.
- 7.5Ruby on Rails Directory Traversal Vulnerability
Directory traversal vulnerability in Action View in Ruby on Rails allows remote attackers to read arbitrary files.
Which Rubyonrails flaws are most likely to be used?
Ranked by the latest exploit-likelihood forecast: the chance each flaw is used in an attack in the next 30 days. A high severity score on its own doesn't tell you that. Flaws shared by many other makers' products are left out.
- >99%CVE-2013-0156High
active_support/core_ext/hash/conversions.rb in Ruby on Rails before 2.3.15, 3.0.x before 3.0.19, 3.1.x before 3.1.10, and 3.2.x before 3.2.11 does not properly restrict casts of string values, which allows remote...
- 96%CVE-2013-0333High
lib/active_support/json/backends/yaml.rb in Ruby on Rails 2.3.x before 2.3.16 and 3.0.x before 3.0.20 does not properly convert JSON data to YAML data for processing by a YAML parser, which allows remote attackers to...
- 96%
Directory traversal vulnerability in Action View in Ruby on Rails before 3.2.22.1, 4.0.x and 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 allows remote attackers to read arbitrary files...
- 89%CVE-2019-5420Critical
A remote code execution vulnerability in development mode Rails <5.2.2.1, <6.0.0.beta3 can allow an attacker to guess the automatically generated development mode secret token.
- 87%CVE-2021-22881Medium
The Host Authorization middleware in Action Pack before 6.1.2.1, 6.0.3.5 suffers from an open redirect vulnerability.
- 82%CVE-2020-8163High
The is a code injection vulnerability in versions of Rails prior to 5.0.1 that wouldallow an attacker who controlled the `locals` argument of a `render` call to perform a RCE.
- 81%CVE-2016-2098High
Action Pack in Ruby on Rails before 3.2.22.2, 4.x before 4.1.14.2, and 4.2.x before 4.2.5.2 allows remote attackers to execute arbitrary Ruby code by leveraging an application's unrestricted use of the render method.
- 67%CVE-2020-8264Medium
In actionpack gem >= 6.0.0, a possible XSS vulnerability exists when an application is running in development mode allowing an attacker to send or embed (in another page) a specially crafted URL which can allow the...
- 54%
Directory traversal vulnerability in actionpack/lib/abstract_controller/base.rb in the implicit-render implementation in Ruby on Rails before 3.2.18, 4.0.x before 4.0.5, and 4.1.x before 4.1.1, when certain route...
All Rubyonrails products we track.
11 products, most vulnerabilities first. Find the ones you run, then open a product to see its versions and exploited flaws.
- Railsrails113 vulnerabilities287 versions
- Ruby on Railsruby_on_rails50 vulnerabilities176 versions
- Rails Html Sanitizersrails_html_sanitizers10 vulnerabilities14 versions
- Html Sanitizerhtml_sanitizer4 vulnerabilities5 versions
- Actionpack Page-Cachingactionpack_page-caching2 vulnerabilities8 versions
- Actionviewactionview1 vulnerability3 versions
- Active Resourceactive_resource1 vulnerability5 versions
- Globalidglobalid1 vulnerability21 versions
- Jquery-Railsjquery-rails1 vulnerability3 versions
- Jquery-Ujsjquery-ujs1 vulnerability1 version
- Web Consoleweb_console1 vulnerability1 version
This directory lists the 11 Rubyonrails products with at least one tracked version, of 15 in our catalogue.
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1 flaw being exploited affects software Acme tracks
Rails Ruby on Rails contains a path traversal vulnerability in Action View. Specially crafted accept headers in combination with calls to `render file:` can cause arbitrary files on the target server to be rendered, disclosing the file contents.
- Matched to
- Rubyonrails on Acme's software list
- What to do
- Patch first, then check for signs of use
Sent to the alert recipients Acme chose. Also in the app and to Acme's webhook.
Our catalogue lists 137 published vulnerabilities across 15 products and 524 versions from Rubyonrails. The most recent Rubyonrails flaw added to the known-exploited list is CVE-2019-5418, on 7 July 2025.
3 Rubyonrails vulnerabilities are on the list of flaws known to be exploited. The most recently added are CVE-2019-5418, CVE-2014-0130 and CVE-2016-0752. The full list is on this page.
Rails, with 113 published vulnerabilities. Its own page lists the ones known to be exploited.
Create a Precursor Intelligence account and track the Rubyonrails products you run. We match them against every published flaw, give each one a risk score from 0 to 100 and tell you as soon as we spot one that affects you, by email, in the app or by webhook.