Ecosystem
RubyGems
1,141 known vulnerabilities.
Most affected packages
1,129 results · Feed
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Low —
Loofah has improper detection of disallowed URIs via `allowed_uri?`
## Summary `Loofah::HTML5::Scrub.allowed_uri?` does not correctly reject `javascript:` URIs when the scheme is split by HTML entity-encoded control characters such as ` ` (carriage return), ` ` (line feed), or `	` (tab). ## Details The `allowed_uri…
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Low 2.3
Rails Active Storage has a possible DoS vulnerability in proxy mode via multi-range requests
Active Storage allows users to attach cloud and local files in Rails applications. Prior to versions 8.1.2.1, 8.0.4.1, and 7.2.3.1 Active Storage's proxy controller does not limit the number of byte ranges in an HTTP Range header. A request with thousands of …
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Medium 4.3
iCalendar has ICS injection via unsanitized URI property values
iCalendar is a Ruby library for dealing with iCalendar files in the iCalendar format defined by RFC-5545. Starting in version 2.0.0 and prior to version 2.12.2, .ics serialization does not properly sanitize URI property values, enabling ICS injection through …
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Medium 4.5
bcrypt-ruby has an Integer Overflow that Causes Zero Key-Strengthening Iterations at Cost=31 on JRuby
bcrypt-ruby is a Ruby binding for the OpenBSD bcrypt() password hashing algorithm. Prior to version 3.1.22, an integer overflow in the Java BCrypt implementation for JRuby can cause zero iterations in the strengthening loop. Impacted applications must be sett…
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Critical 9.1
Graphiti Affected by Arbitrary Method Execution via Unvalidated Relationship Names
Graphiti is a framework that sits on top of models and exposes them via a JSON:API-compliant interface. Versions prior to 1.10.2 have an arbitrary method execution vulnerability that affects Graphiti's JSONAPI write functionality. An attacker can craft a mali…
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Medium 6.6
Rails Active Storage has possible glob injection in its DiskService
Active Storage allows users to attach cloud and local files in Rails applications. Prior to versions 8.1.2.1, 8.0.4.1, and 7.2.3.1, Active Storage's `DiskService#delete_prefixed` passes blob keys directly to `Dir.glob` without escaping glob metacharacters. If…
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High 8.0
Rails Active Storage has possible Path Traversal in DiskService
Active Storage allows users to attach cloud and local files in Rails applications. Prior to versions 8.1.2.1, 8.0.4.1, and 7.2.3.1, Active Storage's `DiskService#path_for` does not validate that the resolved filesystem path remains within the storage root dir…
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Medium 6.6
Rails Active Support has a possible DoS vulnerability in its number helpers
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 …
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Medium 6.6
Rails Active Storage has a possible DoS vulnerability when in proxy mode via Range requests
Active Storage allows users to attach cloud and local files in Rails applications. Prior to versions 8.1.2.1, 8.0.4.1, and 7.2.3.1, when serving files through Active Storage's proxy delivery mode, the proxy controller loads the entire requested byte range int…
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Medium 5.3
Rails Active Storage has possible content type bypass via metadata in direct uploads
Active Storage allows users to attach cloud and local files in Rails applications. Prior to versions 8.1.2.1, 8.0.4.1, and 7.2.3.1, `DirectUploadsController` accepts arbitrary metadata from the client and persists it on the blob. Because internal flags like `…
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Medium 5.3
Rails Active Support has a possible XSS vulnerability in SafeBuffer#%
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 `SafeBuf…
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Medium 6.9
Rails Active Support has a possible ReDoS vulnerability in number_to_delimited
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.…
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Low 2.3
Rails has a possible XSS vulnerability in its Action View tag helpers
Action View provides conventions and helpers for building web pages with the Rails framework. Prior to versions 8.1.2.1, 8.0.4.1, and 7.2.3.1, when a blank string is used as an HTML attribute name in Action View tag helpers, the attribute escaping is bypassed…
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Low 1.3
Rails has a possible XSS vulnerability in its Action Pack debug exceptions
Action Pack is a Rubygem for building web applications on the Rails framework. In versions on the 8.1 branch prior to 8.1.2.1, the debug exceptions page does not properly escape exception messages. A carefully crafted exception message could inject arbitrary …
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High 8.3
Ruby JSON has a format string injection vulnerability
Ruby JSON is a JSON implementation for Ruby. From version 2.14.0 to before versions 2.15.2.1, 2.17.1.2, and 2.19.2, a format string injection vulnerability can lead to denial of service attacks or information disclosure, when the allow_duplicate_key: false pa…
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Medium 5.3
Avo has a XSS vulnerability on `return_to` param
Avo is a framework to create admin panels for Ruby on Rails apps. Prior to version 3.30.3, a reflected cross-site scripting (XSS) vulnerability exists in the return_to query parameter used in the avo interface. An attacker can craft a malicious URL that injec…
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Medium 6.0
Devise has a confirmable "change email" race condition that permits user to confirm email they have no access to
Devise is an authentication solution for Rails based on Warden. Prior to version 5.0.3, a race condition in Devise's Confirmable module allows an attacker to confirm an email address they do not own. This affects any Devise application using the `reconfirmabl…
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Low —
Improper detection of disallowed URIs by Loofah `allowed_uri?`
## Summary `Loofah::HTML5::Scrub.allowed_uri?` does not correctly reject `javascript:` URIs when the scheme is split by HTML entity-encoded control characters such as ` ` (carriage return), ` ` (line feed), or `	` (tab). ## Details The `allowed_uri…
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Medium 5.4
Rubygem-katello: katello: denial of service and potential information disclosure via sql injection
A flaw was found in the Katello plugin for Red Hat Satellite. This vulnerability, caused by improper sanitization of user-provided input, allows a remote attacker to inject arbitrary SQL commands into the sort_by parameter of the /api/hosts/bootc_images API e…
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High 7.5
sigstore-ruby verifier returns success for DSSE bundles with mismatched in-toto subject digest
sigstore-ruby is a pure Ruby implementation of the sigstore verify command from the sigstore/cosign project. Prior to 0.2.3, Sigstore::Verifier#verify does not propagate the VerificationFailure returned by verify_in_toto when the artifact digest does not matc…
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Medium 6.0
Camaleon CMS AWS Uploader Authenticated Path Traversal Arbitrary File Read
Camaleon CMS versions 2.4.5.0 through 2.9.0, prior to commit f54a77e, contain a path traversal vulnerability in the AWS S3 uploader implementation that allows authenticated users to read arbitrary files from the web server’s filesystem. The issue occurs in th…
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High 8.3
Rubyipmi: red hat satellite: remote code execution in rubyipmi via malicious bmc username
A flaw was found in rubyipmi, a gem used in the Baseboard Management Controller (BMC) component of Red Hat Satellite. An authenticated attacker with host creation or update permissions could exploit this vulnerability by crafting a malicious username for the …
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Medium 5.4
Rack's Stored XSS in Rack::Directory via javascript: filenames rendered into anchor href
Rack is a modular Ruby web server interface. Prior to versions 2.2.22, 3.1.20, and 3.2.5, `Rack::Directory` generates an HTML directory index where each file entry is rendered as a clickable link. If a file exists on disk whose basename starts with the `javas…
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High 7.5
Rack has a Directory Traversal via Rack:Directory
Rack is a modular Ruby web server interface. Prior to versions 2.2.22, 3.1.20, and 3.2.5, `Rack::Directory`’s path check used a string prefix match on the expanded path. A request like `/../root_example/` can escape the configured root if the target path star…
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Low —
Bitcoinrb Vulnerable to Command injection via RPC
### Summary: Remote Code Execution Unsafe handling of request parameters in the RPC HTTP server results in command injection ### Details In lib/bitcoin/rpc/http_server.rb line 30-39, the JSON body of a POST request is parsed into `command` and `args` variable…
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Medium 5.8
Faraday affected by SSRF via protocol-relative URL host override in build_exclusive_url
Faraday is an HTTP client library abstraction layer that provides a common interface over many adapters. Prior to 2.14.1, Faraday's build_exclusive_url method (in lib/faraday/connection.rb) uses Ruby's URI#merge to combine the connection's base URL with a use…
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High 7.7
Unauthenticated Spree Commerce users can view completed guest orders by Order ID
Spree is an open source e-commerce solution built with Ruby on Rails. Prior to versions 5.0.8, 5.1.10, 5.2.7, and 5.3.2, unauthenticated users can view completed guest orders by Order ID. This issue may lead to disclosure of PII of guest users (including name…
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High 7.7
Spree allows unauthenticated users can access all guest addresses
Spree is an open source e-commerce solution built with Ruby on Rails. A critical IDOR vulnerability exists in Spree Commerce's guest checkout flow that allows any guest user to bind arbitrary guest addresses to their order by manipulating address ID parameter…
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High 7.1
Phlex XSS protection bypass via attribute splatting, dynamic tags, and href values
### Impact During a security audit conducted with Claude Opus 4.6 and GPT-5.3-Codex, we identified three specific ways to bypass the XSS (cross-site-scripting) protection built into Phlex. 1. The first bypass could happen if user-provided attributes with stri…
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High 8.2
Decidim's private data exports can lead to data leaks
Decidim is a participatory democracy framework. In versions from 0.30.0 to before 0.30.4 and from 0.31.0.rc1 to before 0.31.0, the private data exports can lead to data leaks in case the UUID generation, causing collisions for the generated UUIDs. This issue …
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High 8.1
Fog-kubevirt: fog-kubevirt: man-in-the-middle vulnerability due to disabled certificate validation
A flaw was found in fog-kubevirt. This vulnerability allows a remote attacker to perform a Man-in-the-Middle (MITM) attack due to disabled certificate validation. This enables the attacker to intercept and potentially alter sensitive communications between Sa…
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High 8.1
Foreman-kubevirt: foreman_kubevirt: man-in-the-middle due to insecure default ssl verification
A flaw was found in foreman_kubevirt. When configuring the connection to OpenShift, the system disables SSL verification if a Certificate Authority (CA) certificate is not explicitly set. This insecure default allows a remote attacker, capable of intercepting…
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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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Medium —
Active Job - Object injection security vulnerability
Active Job vulnerability: An Active Job bug allowed String arguments to be deserialized as if they were Global IDs, an object injection security vulnerability.
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High —
ActiveRecord-JDBC-Adapter (AR-JDBC) lib/arjdbc/jdbc/adapter.rb sql.gsub() Function SQL Injection
ActiveRecord-JDBC-Adapter (AR-JDBC) contains a flaw that may allow carrying out an SQL injection attack. The issue is due to the sql.gsub() function in lib/arjdbc/jdbc/adapter.rb not properly sanitizing user-supplied input before using it in SQL queries. This…
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Critical 10.0
Unauthenticated Remote Code Execution in openc3-api
OpenC3 COSMOS provides the functionality needed to send commands to and receive data from one or more embedded systems. From 5.0.0 to 6.10.1, OpenC3 COSMOS contains a critical remote code execution vulnerability reachable through the JSON-RPC API. When a JSON…
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High 7.5
Spree API has Unauthenticated IDOR - Guest Address
Spree is an open source e-commerce solution built with Ruby on Rails. Prior to versions 4.10.2, 5.0.7, 5.1.9, and 5.2.5, an Unauthenticated Insecure Direct Object Reference (IDOR) vulnerability was identified that allows an unauthenticated attacker to access …
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High 7.5
Shakapacker has environment variable leak via EnvironmentPlugin that exposes secrets to client-side bundles
### Summary Since 2017, the default webpack plugins have passed the entire `process.env` to `EnvironmentPlugin`. This pattern exposed ALL build environment variables to client-side JavaScript bundles whenever application code (or any dependency) referenced `p…