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RubyGems
1,115 known vulnerabilities.
Most affected packages
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Critical 9.5
Action Pack: Possible arbitrary file read and remote code execution in Active Storage variant processing
Action Pack is a framework for handling and responding to web requests. In versions prior to 7.2.3.2, 8.0.5.1 and 8.1.3.1, Active Storage does not disable libvips operations marked unsafe for untrusted content, allowing a crafted upload to invoke such an oper…
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Critical 9.8CVE-2026-44024 Public exploit
Fluentd: Remote Code Execution (RCE) via Arbitrary File Write in `${tag}` Placeholder
Fluentd collects events from various data sources and writes them to files, RDBMS, NoSQL, IaaS, SaaS, Hadoop and so on. Prior to 1.19.3, Fluentd allows dynamically constructing file paths using the ${tag} placeholder, and insufficient validation of ${tag} in …
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Medium 6.3CVE-2026-54900 Public exploit
Oj: Negative-Size memcpy in Oj::Parser create_id Attribute Handling
Oj (Optimized JSON) is a JSON parser and Object marshaller packaged as a Ruby gem. In versions prior to 3.17.2, when in usual mode with create_id enabled, Oj::Parser#parse is vulnerable to heap corruption via a negative-size memcpy. When a JSON object key is …
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Critical 9.3CVE-2026-39324 Public exploit
Rack::Session::Cookie secrets: decrypt failure fallback enables secretless session forgery and Marshal deserialization
Rack::Session is a session management implementation for Rack. From 2.0.0 to before 2.1.2, Rack::Session::Cookie incorrectly handles decryption failures when configured with secrets:. If cookie decryption fails, the implementation falls back to a default deco…
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Medium 4.8CVE-2026-34835 Public exploit
Rack: `Rack::Request` accepts invalid Host characters, enabling host allowlist bypass.
Rack is a modular Ruby web server interface. From versions 3.0.0.beta1 to before 3.1.21, and 3.2.0 to before 3.2.6, Rack::Request parses the Host header using an AUTHORITY regular expression that accepts characters not permitted in RFC-compliant hostnames, in…
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Critical 9.2CVE-2025-24293 Public exploit
Active Storage allowed transformation methods that were potentially unsafe
# Active Storage allowed transformation methods potentially unsafe Active Storage attempts to prevent the use of potentially unsafe image transformation methods and parameters by default. The default allowed list contains three methods allow for the circumven…
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High 7.5CVE-2020-36939 Public exploit
Cassandra Web 0.5.0 - Remote File Read
Cassandra Web 0.5.0 contains a directory traversal vulnerability that allows unauthenticated attackers to read arbitrary files by manipulating path traversal parameters. Attackers can exploit the disabled Rack::Protection module to read sensitive system files…
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Medium 6.4CVE-2026-23885 Public exploit
AlchemyCMS has Authenticated Remote Code Execution (RCE) via eval injection in ResourcesHelper
Alchemy is an open source content management system engine written in Ruby on Rails. Prior to versions 7.4.12 and 8.0.3, the application uses the Ruby `eval()` function to dynamically execute a string provided by the `resource_handler.engine_name` attribute i…
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Critical 9.3CVE-2011-10026 Public exploit
Spreecommerce < 0.50.x API RCE
Spreecommerce versions prior to 0.50.x contain a remote command execution vulnerability in the API's search functionality. Improper input sanitation allows attackers to inject arbitrary shell commands via the search[instance_eval] parameter, which is dynamica…
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Critical 10.0CVE-2011-10019 Public exploit
Spreecommerce < 0.60.2 Search Parameter RCE
Spreecommerce versions prior to 0.60.2 contains a remote command execution vulnerability in its search functionality. The application fails to properly sanitize input passed via the search[send][] parameter, which is dynamically invoked using Ruby’s send meth…
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Critical 9.1CVE-2025-54887 Public exploit
jwe: Missing AES-GCM authentication tag validation in encrypted JWEs
jwe is a Ruby implementation of the RFC 7516 JSON Web Encryption (JWE) standard. In versions 1.1.0 and below, authentication tags of encrypted JWEs can be brute forced, which may result in loss of confidentiality for those JWEs and provide ways to craft arbit…
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Critical 9.4CVE-2025-2304 Public exploit
Camaleon CMS Privilege Escalation
A Privilege Escalation through a Mass Assignment exists in Camaleon CMS When a user wishes to change his password, the 'updated_ajax' method of the UsersController is called. The vulnerability stems from the use of the dangerous permit! method, which allows a…
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Critical 9.1CVE-2025-27407 Public exploit
Remote code execution when loading a crafted GraphQL schema
graphql-ruby is a Ruby implementation of GraphQL. Starting in version 1.11.5 and prior to versions 1.11.8, 1.12.25, 1.13.24, 2.0.32, 2.1.14, 2.2.17, and 2.3.21, loading a malicious schema definition in `GraphQL::Schema.from_introspection` (or `GraphQL::Schema…
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Critical 9.0
Oxidized Web RANCID migration page allows unauthenticated user to gain control over Linux user account
In oxidized-web (aka Oxidized Web) before 0.15.0, the RANCID migration page allows an unauthenticated user to gain control over the Linux user account that is running oxidized-web.
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Medium 4.8CVE-2024-48652 Public exploit
camaleon_cms affected by cross site scripting
Cross Site Scripting vulnerability in camaleon-cms v.2.7.5 allows remote attacker to execute arbitrary code via the content group name field.
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Medium 5.4CVE-2024-45614 Public exploit
Header normalization allows for client to clobber proxy set headers in Puma
Puma is a Ruby/Rack web server built for parallelism. In affected versions clients could clobber values set by intermediate proxies (such as X-Forwarded-For) by providing a underscore version of the same header (X-Forwarded_For). Any users relying on proxy se…
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High 7.7
Arbitrary path traversal in Camaleon CMS
Camaleon CMS is a dynamic and advanced content management system based on Ruby on Rails. A path traversal vulnerability accessible via MediaController's download_private_file method allows authenticated users to download any file on the web server Camaleon CM…
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Critical 10.0
Arbitrary file write leading to RCE in Camaleon CMS
Camaleon CMS is a dynamic and advanced content management system based on Ruby on Rails. An arbitrary file write vulnerability accessible via the upload method of the MediaController allows authenticated users to write arbitrary files to any location on the w…
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Critical 10.0
The Ruby SAML library vulnerable to a SAML authentication bypass via Incorrect XPath selector
The Ruby SAML library is for implementing the client side of a SAML authorization. Ruby-SAML in <= 12.2 and 1.13.0 <= 1.16.0 does not properly verify the signature of the SAML Response. An unauthenticated attacker with access to any signed saml document (by t…
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Medium 4.3CVE-2024-39908 Public exploit
Denial of service in REXML
REXML is an XML toolkit for Ruby. The REXML gem before 3.3.1 has some DoS vulnerabilities when it parses an XML that has many specific characters such as `<`, `0` and `%>`. If you need to parse untrusted XMLs, you many be impacted to these vulnerabilities. Th…
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Medium 5.3CVE-2024-35176 Public exploit
REXML contains a denial of service vulnerability
REXML is an XML toolkit for Ruby. The REXML gem before 3.2.6 has a denial of service vulnerability when it parses an XML that has many `<`s in an attribute value. Those who need to parse untrusted XMLs may be impacted to this vulnerability. The REXML gem 3.2.…
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Medium 5.3CVE-2024-26144 Public exploit
Possible Sensitive Session Information Leak in Active Storage
Rails is a web-application framework. Starting with version 5.2.0, there is a possible sensitive session information leak in Active Storage. By default, Active Storage sends a Set-Cookie header along with the user's session cookie when serving blobs. It also …
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Medium 6.5CVE-2024-22411 Public exploit
Cross site scripting in Action messages on Avo
Avo is a framework to create admin panels for Ruby on Rails apps. In Avo 3 pre12, any HTML inside text that is passed to `error` or `succeed` in an `Avo::BaseAction` subclass will be rendered directly without sanitization in the toast/notification that appear…
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High 7.5CVE-2023-31606 Public exploit
RedCloth Regular Expression Denial of Service issue
A Regular Expression Denial of Service (ReDoS) issue was discovered in the sanitize_html function of redcloth gem v4.0.0. This vulnerability allows attackers to cause a Denial of Service (DoS) via supplying a crafted payload.
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Critical 9.8
Server-Side Template Injection in Camaleon CMS
Camaleon CMS v2.7.0 was discovered to contain a Server-Side Template Injection (SSTI) vulnerability via the formats parameter.
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Critical 9.8CVE-2022-36231 Public exploit
Code injection in pdf_info
pdf_info 0.5.3 is vulnerable to Command Execution because the Ruby code uses backticks instead of Open3.
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Critical 9.8CVE-2022-32224 Public exploit
Active Record RCE bug with Serialized Columns
A possible escalation to RCE vulnerability exists when using YAML serialized columns in Active Record < 7.0.3.1, <6.1.6.1, <6.0.5.1 and <5.2.8.1 which could allow an attacker, that can manipulate data in the database (via means like SQL injection), the abilit…
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High 8.8CVE-2022-45442 Public exploit
Sinatra vulnerable to Reflected File Download attack
Sinatra is a domain-specific language for creating web applications in Ruby. An issue was discovered in Sinatra 2.0 before 2.2.3 and 3.0 before 3.0.4. An application is vulnerable to a reflected file download (RFD) attack that sets the Content-Disposition hea…
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High 7.3
Command Injection
The package pdfkit from 0.0.0 are vulnerable to Command Injection where the URL is not properly sanitized.
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Medium 6.1CVE-2022-31160 Public exploit
jQuery UI contains potential XSS vulnerability when refreshing a checkboxradio with an HTML-like initial text label
jQuery UI is a curated set of user interface interactions, effects, widgets, and themes built on top of jQuery. Versions prior to 1.13.2 are potentially vulnerable to cross-site scripting. Initializing a checkboxradio widget on an input enclosed within a labe…
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Critical 9.8CVE-2022-21831 Public exploit
Possible code injection vulnerability in Rails / Active Storage
A code injection vulnerability exists in the Active Storage >= v5.2.0 that could allow an attacker to execute code via image_processing arguments.
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High 7.5
Nokogiri affected by zlib's Out-of-bounds Write vulnerability
zlib before 1.2.12 allows memory corruption when deflating (i.e., when compressing) if the input has many distant matches.
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High 7.5CVE-2021-22569 Public exploit
Denial of Service of protobuf-java parsing procedure
An issue in protobuf-java allowed the interleaving of com.google.protobuf.UnknownFieldSet fields in such a way that would be processed out of order. A small malicious payload can occupy the parser for several minutes by creating large numbers of short-lived o…
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Medium 6.5
XSS in the `of` option of the `.position()` util
jQuery-UI is the official jQuery user interface library. Prior to version 1.13.0, accepting the value of the `of` option of the `.position()` util from untrusted sources may execute untrusted code. The issue is fixed in jQuery UI 1.13.0. Any string value pass…
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Medium 6.5
XSS in the `altField` option of the Datepicker widget
jQuery-UI is the official jQuery user interface library. Prior to version 1.13.0, accepting the value of the `altField` option of the Datepicker widget from untrusted sources may execute untrusted code. The issue is fixed in jQuery UI 1.13.0. Any string value…
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Critical 9.8
Dragonfly contains remote code execution vulnerability
An argument injection vulnerability in the Dragonfly gem before 1.4.0 for Ruby allows remote attackers to read and write to arbitrary files via a crafted URL when the verify_url option is disabled. This may lead to code execution. The problem occurs because t…
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High 7.2
Command Injection
Lodash versions prior to 4.17.21 are vulnerable to Command Injection via the template function.
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High 7.5CVE-2021-22880 Public exploit
Active Record subject to Regular Expression Denial-of-Service (ReDoS)
The PostgreSQL adapter in Active Record before 6.1.2.1, 6.0.3.5, 5.2.4.5 suffers from a regular expression denial of service (REDoS) vulnerability. Carefully crafted input can cause the input validation in the `money` type of the PostgreSQL adapter in Active …
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High 7.5CVE-2020-25613 Public exploit
WEBRick vulnerable to HTTP Request/Response Smuggling
An issue was discovered in Ruby through 2.5.8, 2.6.x through 2.6.6, and 2.7.x through 2.7.1. WEBrick, a simple HTTP server bundled with Ruby, had not checked the transfer-encoding header value rigorously. An attacker may potentially exploit this issue to bypa…
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Medium 5.4CVE-2020-15169 Public exploit
XSS in Action View
In Action View before versions 5.2.4.4 and 6.0.3.3 there is a potential Cross-Site Scripting (XSS) vulnerability in Action View's translation helpers. Views that allow the user to control the default (not found) value of the `t` and `translate` helpers could …