OESA-2026-1967 rubygem-addressable security update

Addressable is a replacement for the URI implementation that is part of Ruby's standard library. It more closely conforms to the relevant RFCs and adds support for URI and URL templates. Security Fixes: Within the URI template implementation in Addressable, two classes of URI template generate...

Buffer Overflow in Zlib::GzipReader ungetc via large input leads to memory corruption

Details A buffer overflow vulnerability exists in Zlib::GzipReader. The zstreambufferungets function prepends caller-provided bytes ahead of previously produced output but fails to guarantee the backing Ruby string has enough capacity before the memmove shifts the existing data. This can lead to...

CVE-2026-35611 affecting package rubygem-addressable for versions less than 2.9.0-1

CVE-2026-35611 affecting package rubygem-addressable for versions less than 2.9.0-1. An upgraded version of the package is available that resolves this issue...

SUSE SLED15 / SLES15 Security Update : rubygem-bundler (SUSE-SU-2026:1355-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1355-1 advisory. Updated to version 2.2.34. - CVE-2020-36327: Bundler chooses a dependency source based on the highest gem...

Uncontrolled resource consumption and loop with unreachable exit condition in facil.io and downstream iodine ruby gem

Summary fiojsonparse can enter an infinite loop when it encounters a nested JSON value starting with i or I. The process spins in user space and pegs one CPU core at 100% instead of returning a parse error. Because iodine vendors the same parser code, the issue also affects iodine when it parses...

Uncontrolled resource consumption and loop with unreachable exit condition in facil.io and downstream iodine ruby gem

Summary fiojsonparse can enter an infinite loop when it encounters a nested JSON value starting with i or I. The process spins in user space and pegs one CPU core at 100 instead of returning a parse error. Because iodine gem vendors the same parser code, the issue also affects iodine gem when it...

ERB has an @_init deserialization guard bypass via def_module / def_method / def_class

ERB implements an @init guard to prevent code execution when ERB objects are reconstructed via Marshal.load on untrusted data. However, ERBdefmethod, ERBdefmodule, and ERBdefclass evaluate the template source without checking this guard, allowing an attacker who controls the data passed to...

Important Photon OS Security Update - PHSA-2026-5.0-0816

Updates of 'rubygem-rdiscount', 'python3-PyJWT' packages of Photon OS have been released...

Important Photon OS Security Update - PHSA-2026-5.0-91-0816

Updates of 'rubygem-rdiscount', 'python3-PyJWT' packages of Photon OS have been released...

ruby: Cookie prefix spoofing in CGI::Cookie.parse

A flaw was found in Ruby. RubyGems cgi gem could allow a remote attacker to conduct spoofing attacks caused by the mishandling of security prefixes in cookie names in the CGI::Cookie.parse function. By sending a specially-crafted request, an attacker could perform cookie prefix spoofing attacks...

PT-2026-44324

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A memory leak occurs in the drm/xe component when the xe gem prime import function is called. Specifically, if the xe dma buf init obj function fails, the attachment created by dma buf...

OPENSUSE-SU-2026:10508-1 ruby4.0-rubygem-rack-2.2-2.2.23-1.1 on GA media

These are all security issues fixed in the ruby4.0-rubygem-rack-2.2-2.2.23-1.1 package on the GA media of openSUSE Tumbleweed...

Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 25.10 : Ruby vulnerability (USN-8137-1)

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 25.10 host has packages installed that are affected by a vulnerability as referenced in the USN-8137-1 advisory. It was discovered that the Ruby URI gem did not properly handle sensitive information when combining URIs....

Ubuntu: Security Advisory (USN-8137-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2026 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

USN-8137-1 ruby2.3, ruby2.5, ruby2.7, ruby3.0, ruby3.2, ruby3.3 vulnerability

It was discovered that the Ruby URI gem did not properly handle sensitive information when combining URIs. A remote attacker could possibly use this issue to leak authentication credentials...

PT-2026-29962

Name of the Vulnerable Software and Affected Versions Ruby URI gem affected versions not specified Description The Ruby URI gem did not properly handle sensitive information when combining URIs. This could allow a remote attacker to leak authentication credentials. Recommendations Run sudo pro fi...

Fedora 44 : rubygem-json (2026-3a7663d43d)

The remote Fedora 44 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-3a7663d43d advisory. New version 2.19.2 is released. This fixes a format string injection vulnerability in JSON.parse, which is now assigned as CVE-2026-33210 Tenable has extract...

Linux Distros Unpatched Vulnerability : CVE-2026-33167

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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 no...

Malicious code in monolith-twirp-pullsd-repositories (RubyGems)

--- -= Per source details. Do not edit below this line.=- Source: ossf-package-analysis 1c34eecc811d04d6583504ad631024a727df5e2107a1025a2786bf8a56a59d3a The OpenSSF Package Analysis project identified 'monolith-twirp-pullsd-repositories' @ 1.0.10 rubygems as malicious. It is considered malicious...

OESA-2026-1723 rubygem-bcrypt security update

bcrypt is a sophisticated and secure hash algorithm designed by The OpenBSD project for hashing passwords. bcrypt-ruby provides a simple, humane wrapper for safely handling passwords. Security Fixes: bcrypt-ruby is a Ruby binding for the OpenBSD bcrypt password hashing algorithm. Prior to version...