Important: Red Hat Security Advisory: ruby:3.3 security, bug fix, and enhancement update

An update for the ruby:3.3 module is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each...

Session Hijacking

MCP Ruby SDK is vulnerable to Session Hijacking. The vulnerability is due to missing session ownership validation in StreamableHTTPTransport, allowing attackers with a stolen session ID to execute tool calls within the victim's session...

Denial Of Service (DoS)

Apache Thrift Ruby bindings are vulnerable to Denial Of Service. The vulnerability is due to improper handling of highly compressed data, where crafted compressed input can cause excessive data amplification and resource consumption, leading to application unavailability...

Important: ruby:3.3 security, bug fix, and enhancement update

Ruby is an extensible, interpreted, object-oriented, scripting language. It has features to process text files and to perform system management tasks. Security Fixes: zlib: zlib: Memory corruption via buffer overflow in Zlib::GzipReader CVE-2026-27820 net-imap: Net::IMAP: Arbitrary IMAP command...

MiracleLinux 9 : ruby-3.0.7-167.el9_8 (AXSA:2026-1454:04)

The remote MiracleLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2026-1454:04 advisory. ruby/net-imap: ruby: Net::IMAP: IMAP Command Injection via Symbol Arguments CVE-2026-42258 net-imap: ruby: Net::IMAP: Information disclosure via...

Important: ruby:3.3 security, bug fix, and enhancement update

Ruby is an extensible, interpreted, object-oriented, scripting language. It has features to process text files and to perform system management tasks. Security Fixes: zlib: zlib: Memory corruption via buffer overflow in Zlib::GzipReader CVE-2026-27820 net-imap: Net::IMAP: Arbitrary IMAP command...

Important: ruby:4.0 security, bug fix, and enhancement update

Ruby is an extensible, interpreted, object-oriented, scripting language. It has features to process text files and to perform system management tasks. Security Fixes: zlib: zlib: Memory corruption via buffer overflow in Zlib::GzipReader CVE-2026-27820 net-imap: Net::IMAP: Arbitrary IMAP command...

ALSA-2026:50728 Important: ruby:3.3 security, bug fix, and enhancement update

Ruby is an extensible, interpreted, object-oriented, scripting language. It has features to process text files and to perform system management tasks. Security Fixes: zlib: zlib: Memory corruption via buffer overflow in Zlib::GzipReader CVE-2026-27820 net-imap: Net::IMAP: Arbitrary IMAP command...

ALSA-2026:50778 Important: ruby security, bug fix, and enhancement update

Ruby is an extensible, interpreted, object-oriented, scripting language. It has features to process text files and to perform system management tasks. Security Fixes: zlib: zlib: Memory corruption via buffer overflow in Zlib::GzipReader CVE-2026-27820 net-imap: Net::IMAP: Arbitrary IMAP command...

ALSA-2026:50827 Important: ruby:4.0 security, bug fix, and enhancement update

Ruby is an extensible, interpreted, object-oriented, scripting language. It has features to process text files and to perform system management tasks. Security Fixes: zlib: zlib: Memory corruption via buffer overflow in Zlib::GzipReader CVE-2026-27820 net-imap: Net::IMAP: Arbitrary IMAP command...

ALSA-2026:50828 Important: ruby:3.3 security, bug fix, and enhancement update

Ruby is an extensible, interpreted, object-oriented, scripting language. It has features to process text files and to perform system management tasks. Security Fixes: zlib: zlib: Memory corruption via buffer overflow in Zlib::GzipReader CVE-2026-27820 net-imap: Net::IMAP: Arbitrary IMAP command...

Photon OS 5.0: Ruby PHSA-2024-5.0-91-0259

An update of the ruby package has been released. %NASLMINLEVEL 80900 C Tenable, Inc. The descriptive text and package checks in this plugin were extracted from VMware Security Advisory PHSA-2024-5.0-91-0259. The text itself is copyright C VMware, Inc. include'compat.inc'; if description...

Photon OS 5.0: Ruby PHSA-2024-5.0-91-0236

An update of the ruby package has been released. %NASLMINLEVEL 80900 C Tenable, Inc. The descriptive text and package checks in this plugin were extracted from VMware Security Advisory PHSA-2024-5.0-91-0236. The text itself is copyright C VMware, Inc. include'compat.inc'; if description...

Photon OS 5.0: Ruby PHSA-2026-5.0-91-0882

An update of the ruby package has been released. %NASLMINLEVEL 80900 C Tenable, Inc. The descriptive text and package checks in this plugin were extracted from VMware Security Advisory PHSA-2026-5.0-91-0882. The text itself is copyright C VMware, Inc. include'compat.inc'; if description...

Important: Red Hat Security Advisory: Satellite 6.17.10 Async Update

A new release is now available for Red Hat Satellite 6.17 for RHEL 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from th...

nokogiri: Nokogiri: Denial of Service or Information Disclosure via invalid encoding handling

A flaw was found in Nokogiri, an XML and HTML library for Ruby. When an attacker provides an invalid encoding to the Documentencoding= function, the library frees the document's current encoding string without replacing it. This leaves the document referencing freed memory, which can lead to a...

Debian dla-4716 : libruby2.7 - security update

The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4716 advisory. - ------------------------------------------------------------------------- Debian LTS Advisory DLA-4716-1 [email protected]...

RHEL 9 : Satellite 6.19.3 Async Update (Important) (RHSA-2026:50221)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:50221 advisory. Red Hat Satellite is a system management solution that allows organizations to configure and maintain their systems without the necessity t...

thrift: Apache Thrift Ruby bindings: Denial of Service via improper handling of highly compressed data

A flaw was found in Apache Thrift Ruby bindings. This vulnerability, categorized as improper handling of highly compressed data, allows a remote attacker to cause a denial of service DoS through a data amplification attack. By sending specially crafted highly compressed data, an attacker can...

SUSE CVE-2026-54522

MessagePack for Ruby is an implementation of the MessagePack binary serialization format. Prior to 1.8.2, MessagePack::Bufferclear in ext/msgpack/buffer.c leaves rmemlast, rmemend, and rmemowner stale after msgpackbuffershiftchunk returns an rmem page to the shared pool, allowing a subsequent...