ruby/json: Ruby JSON: Denial of Service or Information Disclosure via format string injection

A flaw was found in Ruby JSON. This vulnerability, a format string injection, allows a remote attacker to cause a denial of service DoS or disclose sensitive information. The flaw occurs when processing specially crafted user-supplied documents with the allowduplicatekey: false parsing option...

A Bootiful Podcast: JRuby lead Charles Nutter

In this episode, we sit down with the lead of the JRuby project for a fascinating look at how Ruby and the JVM came together, how JRuby became a production-ready powerhouse, and why it still matters today. We dig into threading, performance, Invoke Dynamic, Project Loom, Panama, Valhalla, and the...

[SECURITY] [DLA 4706-2] ruby-grape regression update

------------------------------------------------------------------------- Debian LTS Advisory DLA-4706-2 [email protected] https://www.debian.org/lts/security/ Abhijith PA August 19, 2026 https://wiki.debian.org/LTS -...

CVE-2026-59825

When LDAP auth uses LDAP_TLS_NO_VERIFY=true, app/models/concerns/user/ldap_authenticable.rb mutates OpenSSL::SSL::SSLContext::DEFAULT_PARAMS, disabling SSL/TLS verification globally for puma web processes. This enables MITM attacks against all puma-originated HTTPS requests. Fixed in Mastodon 4.4...

PT-2026-77143

Name of the Vulnerable Software and Affected Versions Mastodon versions prior to 4.4.19 Mastodon versions 4.5.0 through 4.5.11 Description When LDAP authentication is configured with LDAP TLS NO VERIFY=true, the file app/models/concerns/user/ldap authenticable.rb mutates...

CVE-2026-69185 vulnerabilities

Vulnerabilities for packages: gitlab-rails-ce-fips, gitlab-rails-ce...

CVE-2026-61666 websocket-driver: Denial of service via malformed Host header

websocket-driver is a WebSocket protocol handler with pluggable I/O. Prior to 0.8.2, WebSocket::Driver.server passes a malformed Host header to URI.parse in lib/websocket/http/request.rb without catching URI::InvalidURIError, allowing a remote client to crash a TCP-backed WebSocket server when th...

CVE-2026-61666

websocket-driver is a WebSocket protocol handler with pluggable I/O. Prior to 0.8.2, WebSocket::Driver.server passes a malformed Host header to URI.parse in lib/websocket/http/request.rb without catching URI::InvalidURIError, allowing a remote client to crash a TCP-backed WebSocket server when th...

CVE-2026-61666 websocket-driver: Denial of service via malformed Host header

websocket-driver is a WebSocket protocol handler with pluggable I/O. Prior to 0.8.2, WebSocket::Driver.server passes a malformed Host header to URI.parse in lib/websocket/http/request.rb without catching URI::InvalidURIError, allowing a remote client to crash a TCP-backed WebSocket server when th...

CVE-2026-61666 websocket-driver: Denial of service via malformed Host header

websocket-driver is a WebSocket protocol handler with pluggable I/O. Prior to 0.8.2, WebSocket::Driver.server passes a malformed Host header to URI.parse in lib/websocket/http/request.rb without catching URI::InvalidURIError, allowing a remote client to crash a TCP-backed WebSocket server when th...

CVE-2026-61666

CVE-2026-61666 affects the Ruby gem websocket-driver (a WebSocket protocol handler with pluggable I/O). In versions prior to 0.8.2 , WebSocket::Driver.server() passes a malformed Host header to URI.parse in lib/websocket/http/request.rb without catching URI::InvalidURIError. A remote client can e...

CVE-2026-61666

websocket-driver is a WebSocket protocol handler with pluggable I/O. Prior to 0.8.2, WebSocket::Driver.server passes a malformed Host header to URI.parse in lib/websocket/http/request.rb without catching URI::InvalidURIError, allowing a remote client to crash a TCP-backed WebSocket server when th...

vim: Vim: Arbitrary code execution via crafted step-definition patterns

A flaw was found in Vim, a command-line text editor. This vulnerability, identified as a code injection, affects the cucumber filetype plugin when Vim is configured with Ruby support. An attacker could exploit this by creating a malicious repository containing specially crafted step-definition...

ROS-20260817-73-0217

The vulnerability in Ruby is related to uncontrolled resource consumption due to filtering and reducing data to unsafe values during the processing of HTTP headers. Exploiting this vulnerability can allow an attacker to cause service failures, provided that the default configurations of...

ROS-20260817-73-0215

The vulnerability in Ruby is related to the lack of measures taken to clean data at the management level. Exploiting this vulnerability allows a remote attacker to execute arbitrary commands...

ROS-20260817-73-0216

The vulnerability in Ruby is related to the lack of measures taken to clean data at the management level. Exploiting this vulnerability allows a remote attacker to execute arbitrary commands...

SUSE CVE-2026-71847

Ruby JSON is a JSON implementation for Ruby. From 2.20.0 until 2.21.2, Ruby's JSON native C extension clears the consumed JSON::ResumableParser input buffer but leaves state.start, state.cursor, and state.end pointing into released storage. When partialvalue reconstructs an incomplete object...

CVE-2026-73648 vulnerabilities

Vulnerabilities for packages: ruby3.4-rails, gitlab-rails-ce-fips, ruby4.0-rails, gitlab-rails-ce, ruby3.2-rails, pghero, ruby3.3-rails, pghero-fips...

CVE-2026-73648 vulnerabilities

Vulnerabilities for packages: ruby3.4-rails, ruby4.0-rails, ruby3.2-rails...

SUSE CVE-2026-73491

Loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri. From 2.25.0 until 2.25.2, Loofah::HTML5::Scrub.alloweduri? does not reject javascript: URIs whose scheme is split or prefixed with the HTML5 named whitespace character...