| CVE-2026-33176 | 高7.5 | Active Support is a toolkit of support libraries and Ruby core extensions extracted from the Rails framework. Prior to versions 8.1.2.1, 8.0.4.1, and 7.2.3.1, Active Support number helpers accept strings containing scientific notation (e.g. `1e10000`), which `BigDecimal` expands into extremely large decimal representat | 24/03/2026 |
| CVE-2026-33170 | 中6.1 | Active Support is a toolkit of support libraries and Ruby core extensions extracted from the Rails framework. Prior to versions 8.1.2.1, 8.0.4.1, and 7.2.3.1, `SafeBuffer#%` does not propagate the `@html_unsafe` flag to the newly created buffer. If a `SafeBuffer` is mutated in place (e.g. via `gsub!`) and then formatte | 24/03/2026 |
| CVE-2026-33169 | 中5.3 | Active Support is a toolkit of support libraries and Ruby core extensions extracted from the Rails framework. `NumberToDelimitedConverter` uses a lookahead-based regular expression with `gsub!` to insert thousands delimiters. Prior to versions 8.1.2.1, 8.0.4.1, and 7.2.3.1, the interaction between the repeated lookahea | 24/03/2026 |
| CVE-2023-38037 | 中5.5 | ActiveSupport::EncryptedFile writes contents that will be encrypted to a
temporary file. The temporary file's permissions are defaulted to the user's
current `umask` settings, meaning that it's possible for other users on the
same system to read the contents of the temporary file.
Attackers that have access to t | 09/01/2025 |
| CVE-2023-28120 | 中5.3 | There is a vulnerability in ActiveSupport if the new bytesplice method is called on a SafeBuffer with untrusted user input. | 09/01/2025 |
| CVE-2023-22796 | 高7.5 | A regular expression based DoS vulnerability in Active Support <6.1.7.1 and <7.0.4.1. A specially crafted string passed to the underscore method can cause the regular expression engine to enter a state of catastrophic backtracking. This can cause the process to use large amounts of CPU and memory, leading to a possible | 09/02/2023 |
| CVE-2020-8165 | 緊急9.8 | A deserialization of untrusted data vulnernerability exists in rails < 5.2.4.3, rails < 6.0.3.1 that can allow an attacker to unmarshal user-provided objects in MemCacheStore and RedisCacheStore potentially resulting in an RCE. | 19/06/2020 |
| CVE-2015-3227 | 中5.0 | The (1) jdom.rb and (2) rexml.rb components in Active Support in Ruby on Rails before 4.1.11 and 4.2.x before 4.2.2, when JDOM or REXML is enabled, allow remote attackers to cause a denial of service (SystemStackError) via a large XML document depth. | 26/07/2015 |
| CVE-2015-3226 | 中4.3 | Cross-site scripting (XSS) vulnerability in json/encoding.rb in Active Support in Ruby on Rails 3.x and 4.1.x before 4.1.11 and 4.2.x before 4.2.2 allows remote attackers to inject arbitrary web script or HTML via a crafted Hash that is mishandled during JSON encoding. | 26/07/2015 |
| CVE-2013-1856 | 中5.8 | The ActiveSupport::XmlMini_JDOM backend in lib/active_support/xml_mini/jdom.rb in the Active Support component in Ruby on Rails 3.0.x and 3.1.x before 3.1.12 and 3.2.x before 3.2.13, when JRuby is used, does not properly restrict the capabilities of the XML parser, which allows remote attackers to read arbitrary files | 19/03/2013 |
| CVE-2013-0333 | 高7.5 | 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 execute arbitrary code, conduct SQL injection attacks, or bypass authentication via crafted data that t | 30/01/2013 |
| CVE-2012-3464 | 中4.3 | Cross-site scripting (XSS) vulnerability in activesupport/lib/active_support/core_ext/string/output_safety.rb in Ruby on Rails before 3.0.17, 3.1.x before 3.1.8, and 3.2.x before 3.2.8 might allow remote attackers to inject arbitrary web script or HTML via vectors involving a ' (quote) character. | 10/08/2012 |
| CVE-2012-1098 | 中4.3 | Cross-site scripting (XSS) vulnerability in Ruby on Rails 3.0.x before 3.0.12, 3.1.x before 3.1.4, and 3.2.x before 3.2.2 allows remote attackers to inject arbitrary web script or HTML via vectors involving a SafeBuffer object that is manipulated through certain methods. | 13/03/2012 |
| CVE-2011-2932 | 中4.3 | Cross-site scripting (XSS) vulnerability in activesupport/lib/active_support/core_ext/string/output_safety.rb in Ruby on Rails 2.x before 2.3.13, 3.0.x before 3.0.10, and 3.1.x before 3.1.0.rc5 allows remote attackers to inject arbitrary web script or HTML via a malformed Unicode string, related to a "UTF-8 escaping vu | 29/08/2011 |
| CVE-2011-2197 | 中4.3 | The cross-site scripting (XSS) prevention feature in Ruby on Rails 2.x before 2.3.12, 3.0.x before 3.0.8, and 3.1.x before 3.1.0.rc2 does not properly handle mutation of safe buffers, which makes it easier for remote attackers to conduct XSS attacks via crafted strings to an application that uses a problematic string m | 30/06/2011 |
| CVE-2009-3086 | 中5.0 | A certain algorithm in Ruby on Rails 2.1.0 through 2.2.2, and 2.3.x before 2.3.4, leaks information about the complexity of message-digest signature verification in the cookie store, which might allow remote attackers to forge a digest via multiple attempts. | 08/09/2009 |
| CVE-2009-3009 | 中4.3 | Cross-site scripting (XSS) vulnerability in Ruby on Rails 2.x before 2.2.3, and 2.3.x before 2.3.4, allows remote attackers to inject arbitrary web script or HTML by placing malformed Unicode strings into a form helper. | 08/09/2009 |