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ALSA-2024:3500 — Moderate: ruby:3.0 security update

2026-10-03T08:08:51.450977+00:00

Affected: AlmaLinux:8: ruby, AlmaLinux:8: ruby-default-gems, AlmaLinux:8: ruby-devel, AlmaLinux:8: ruby-doc, AlmaLinux:8: ruby-libs, AlmaLinux:8: rubygem-abrt, AlmaLinux:8: rubygem-abrt-doc, AlmaLinux:8: rubygem-bigdecimal, AlmaLinux:8: rubygem-bundler, AlmaLinux:8: rubygem-io-console and 18 more

Ruby is an extensible, interpreted, object-oriented, scripting language. It has features to process text files and to perform system management tasks.

Security Fix(es):

* ruby/cgi-gem: HTTP response splitting in CGI (CVE-2021-33621) * ruby: ReDoS vulnerability in URI (CVE-2023-28755) * ruby: ReDoS vulnerability in Time (CVE-2023-28756) * ruby: RCE vulnerability with .rdoc_options in RDoc (CVE-2024-27281) * ruby: Buffer overread vulnerability in StringIO (CVE-2024-27280) * ruby: Arbitrary memory address read vulnerability with Regex search (CVE-2024-27282)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

bdu:2024-02457

2026-10-03T08:08:51.451084+00:00

bdu:2024-02457

BELL-CVE-2024-27281

2026-10-03T08:08:51.451103+00:00

Affected: Alpaquita:23: ruby, Alpaquita:stream: ruby

certfr-2025-avi-0003 — De multiples vulnérabilités ont été découvertes dans les produits IBM. Certaines d'entre elles permettent à un attaquan…

2026-10-03T08:08:51.451124+00:00

certfr-2025-avi-0003

CLEANSTART-2026-GN52279 — Security fix for CVE-2024-27281 applied in: ruby 3.3.1-r0

2026-10-03T08:08:51.451140+00:00

Affected: CleanStart: ruby

Security vulnerability affects the ruby package. This issue is resolved in later releases. See references for vulnerability details.

EUVD-2026-259031

2026-10-03T08:08:51.451160+00:00

EUVD-2026-259031

fkie_cve-2024-27281

2026-10-03T08:08:51.451172+00:00

An issue was discovered in RDoc 6.3.3 through 6.6.2, as distributed in Ruby 3.x through 3.3.0. When parsing .rdoc_options (used for configuration in RDoc) as a YAML file, object injection and resultant remote code execution are possible because there are no restrictions on the classes that can be restored. (When loading the documentation cache, object injection and resultant remote code execution are also possible if there were a crafted cache.) The main fixed version is 6.6.3.1. For Ruby 3.0 users, a fixed version is rdoc 6.3.4.1. For Ruby 3.1 users, a fixed version is rdoc 6.4.1.1. For Ruby 3.2 users, a fixed version is rdoc 6.5.1.1.

GHSA-592j-995h-p23j — RDoc RCE vulnerability with .rdoc_options

2026-10-03T08:08:51.451197+00:00

Affected: RubyGems: rdoc

An issue was discovered in RDoc 6.3.3 through 6.6.2, as distributed in Ruby 3.x through 3.3.0.

When parsing `.rdoc_options` (used for configuration in RDoc) as a YAML file, object injection and resultant remote code execution are possible because there are no restrictions on the classes that can be restored.

When loading the documentation cache, object injection and resultant remote code execution are also possible if there were a crafted cache.

We recommend to update the RDoc gem to version 6.6.3.1 or later. In order to ensure compatibility with bundled version in older Ruby series, you may update as follows instead:

* For Ruby 3.0 users: Update to `rdoc` 6.3.4.1 * For Ruby 3.1 users: Update to `rdoc` 6.4.1.1 * For Ruby 3.2 users: Update to `rdoc` 6.5.1.1

You can use `gem update rdoc` to update it. If you are using bundler, please add `gem "rdoc", ">= 6.6.3.1"` to your `Gemfile`.

Note: 6.3.4, 6.4.1, 6.5.1 and 6.6.3 have a incorrect fix. We recommend to upgrade 6.3.4.1, 6.4.1.1, 6.5.1.1 and 6.6.3.1 instead of them.

gsd-2024-27281

2026-10-03T08:08:51.451249+00:00

gsd-2024-27281

msrc_CVE-2024-27281 — An issue was discovered in RDoc 6.3.3 through 6.6.2 as distributed in Ruby 3.x through 3.3.0. When parsing .rdoc_option…

2026-10-03T08:08:51.451262+00:00

msrc_CVE-2024-27281

OESA-2024-1433 — ruby security update

2026-10-03T08:08:51.451282+00:00

Affected: openEuler:20.03-LTS-SP1: ruby, openEuler:20.03-LTS-SP4: ruby, openEuler:22.03-LTS: ruby, openEuler:22.03-LTS-SP1: ruby, openEuler:22.03-LTS-SP2: ruby, openEuler:22.03-LTS-SP3: ruby

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 Fix(es): A buffer overread flaw was found in rubygem StringIO. The ungetbyte and ungetc methods on a StringIO object can read past the end of a string, and a subsequent call to StringIO.gets may return the memory value.(CVE-2024-27280) A flaw was found in Rubygem RDoc. When parsing .rdoc_options used for configuration in RDoc as a YAML file there are no restrictions on the classes that can be restored. This issue may lead to object injection, resulting in remote code execution.(CVE-2024-27281)

RHSA-2024:3500 — Red Hat Security Advisory: ruby:3.0 security update

2026-10-03T08:08:51.451314+00:00

ruby/cgi-gem: HTTP response splitting in CGI ruby: ReDoS vulnerability in URI ruby: ReDoS vulnerability in Time ruby: Buffer overread vulnerability in StringIO ruby: RCE vulnerability with .rdoc_options in RDoc ruby: Arbitrary memory address read vulnerability with Regex search

UBUNTU-CVE-2024-27281

2026-10-03T08:08:51.451340+00:00

Affected: Ubuntu:Pro:14.04:LTS: jruby, Ubuntu:Pro:16.04:LTS: ruby2.3, Ubuntu:16.04:LTS: jruby, Ubuntu:Pro:18.04:LTS: ruby2.5, Ubuntu:18.04:LTS: jruby, Ubuntu:20.04:LTS: ruby2.7, Ubuntu:20.04:LTS: jruby, Ubuntu:22.04:LTS: ruby3.0, Ubuntu:24.04:LTS: jruby, Ubuntu:24.04:LTS: ruby3.2 and 2 more

WID-SEC-W-2024-0682 — Ruby: Mehrere Schwachstellen

2026-10-03T08:08:51.451378+00:00

Ein Angreifer kann mehrere Schwachstellen in Ruby ausnutzen, um Informationen offenzulegen oder Code auszuführen.