CVE-2026-42258

A flaw was found in Net::IMAP, a Ruby library that provides Internet Message Access Protocol IMAP client functionality. This vulnerability allows a remote attacker to inject arbitrary IMAP commands. This is achieved by passing specially crafted symbol arguments to IMAP commands. Successful...

CVE-2026-46727

An issue was discovered in Ruby 4 before 4.0.5. A race condition leading to a use-after-free in the pthread-based getaddrinfo timeout handler rbgetaddrinfo in ext/socket/raddrinfo.c allows a remote attacker who can delay DNS responses near the user-specified timeout to crash a Ruby process that...

User Impersonation

Overview puma is a simple, fast, threaded, and highly concurrent HTTP 1.1 server for Ruby/Rack applications. Puma is intended for use in both development and production environments. It's great for highly concurrent Ruby implementations such as Rubinius and JRuby as well as as providing process...

OESA-2026-2578 ruby security update

Ruby is a fast and easy interpreted scripting language for object-oriented programming. It has many functions for processing text Files and perform system management tasks such as Perl. Security Fixes: Net::IMAP implements Internet Message Access Protocol IMAP client functionality in Ruby. Prior ...

[SECURITY] Fedora 44 Update: rubygem-yard-0.9.40-2.fc44

YARD is a documentation generation tool for the Ruby programming language. It enables the user to generate consistent, usable documentation that can be exported to a number of formats very easily, and also supports extending for custom Ruby constructs such as custom class level definitions...

[SECURITY] Fedora 43 Update: rubygem-yard-0.9.37-5.fc43

YARD is a documentation generation tool for the Ruby programming language. It enables the user to generate consistent, usable documentation that can be exported to a number of formats very easily, and also supports extending for custom Ruby constructs such as custom class level definitions...

RLSA-2026:20606 Important: ruby4.0 security update

Ruby is the interpreted scripting language for quick and easy object-oriented programming. It has many features to process text files and to do system management tasks as in Perl. It is simple, straight-forward, and extensible. Security Fixes: ruby/json: Ruby JSON: Denial of Service or Informatio...

Exploit for Exposure of Sensitive Information to an Unauthorized Actor in Tuzitio Camaleon_Cms

HTB Facts — Full Writeup Difficulty: Medium OS: Lin...

AlmaLinux 10 : ruby4.0 (ALSA-2026:20606)

The remote AlmaLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:20606 advisory. ruby/json: Ruby JSON: Denial of Service or Information Disclosure via format string injection CVE-2026-33210 erb: ERB: Arbitrary code execution via...

RockyLinux 10 : ruby4.0 (RLSA-2026:20606)

The remote RockyLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:20606 advisory. ruby/json: Ruby JSON: Denial of Service or Information Disclosure via format string injection CVE-2026-33210 erb: ERB: Arbitrary code execution via...

ROS-20260603-73-0003

The vulnerability in rubygem-activestorage relates to insufficient checking of the intentions by the recipient of the broadcast message. Exploiting this vulnerability allows a perpetrator to execute arbitrary code...

Rack DoS

The vulnerability of the Ruby-based Rack web server module interface parser involves an uncontrolled consumption of resources. Exploiting this vulnerability can allow a malicious actor to cause service failures...

Rack map_accel_path Unauthorized Access

The vulnerability of the mapaccelpath method in the Ruby programming language-based Rack web server module interface is related to the use of a regular expression, which does not sufficiently restrict the set of allowed values. Exploiting this vulnerability can allow an attacker to gain...

Rack::Utils get_byte_ranges DoS

The vulnerability of the Rack::Utils.getbyteranges function in the Rack web server module interface, a programming language for Ruby, is related to an uncontrolled resource consumption. Exploiting this vulnerability could allow an attacker to cause service interruptions...

Rack Modular Interface Buffer Overflow

The vulnerability of the Ruby-based Rack web server’s modular interface is related to improper handling of parameter length discrepancies. Exploiting this vulnerability allows an attacker to compromise the confidentiality and integrity of the protected information...

MAL-2026-5149 Malicious code in align_rest_api (RubyGems)

--- -= Per source details. Do not edit below this line.=- Source: ossf-package-analysis a3b4fd5fe3e581dc76f4fbe187da4427e159ff73a717a99c2f519af87ca7b2c8 The OpenSSF Package Analysis project identified 'alignrestapi' @ 99.99.99 rubygems as malicious. It is considered malicious because: - The packa...

Exploit for CVE-2022-25765

CVE-2022-25765 — Command Injection in pdfkit Descripción...

Linux Distros Unpatched Vulnerability : CVE-2026-44837

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - viewcomponent is a framework for building reusable, testable, and encapsulated view components in Ruby on Rails. From 3.0.0 to 4.9.0, the system test entrypoint...

RockyLinux 9 : ruby:4.0 (RLSA-2026:20596)

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:20596 advisory. ruby/json: Ruby JSON: Denial of Service or Information Disclosure via format string injection CVE-2026-33210 erb: ERB: Arbitrary code execution via...

CVE-2026-44837

viewcomponent is a framework for building reusable, testable, and encapsulated view components in Ruby on Rails. From 3.0.0 to 4.9.0, the system test entrypoint canonicalizes a user-controlled file path with File.realpath, then checks whether the resolved path starts with the temp directory path...