SUSE-SU-2026:3090-1 Security update for ruby3.4

This update for ruby3.4 fixes the following issues - CVE-2026-42258: Net:IMAP: Command Injection via Symbol Arguments bsc1268011. - CVE-2026-47240: Net:IMAP: Command Injection via non-synchronizing literal in 'raw' argument bsc1268337. - CVE-2026-47241: Net:IMAP: Denial of Service via incomplete...

net-imap: rubygem-net-imap: Net::IMAP: Denial of Service via malformed command input

A flaw was found in Net::IMAP, a Ruby client library for the Internet Message Access Protocol IMAP. This vulnerability allows a remote attacker to cause a denial of service by sending specially crafted input to certain Net::IMAP commands. When a raw string argument, derived from user-controlled...

net-imap: Net::IMAP: Arbitrary IMAP command injection via CRLF sequences in unvalidated input

A flaw was found in Net::IMAP before 0.4.24, 0.5.14, and 0.6.4. Several commands accept raw string arguments sent to the server without validation or escaping; if derived from user-controlled input, CRLF sequences allow injection of arbitrary IMAP commands...

Important: Red Hat Security Advisory: ruby:3.3 security update

An update for the ruby:3.3 module is now available for Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions. 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...

Important: Red Hat Security Advisory: ruby:2.5 security update

An update for the ruby:2.5 module is now available for Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On. Red Hat Product Security has rated this update as having a security impact of Important. A Common...

Important: Red Hat Security Advisory: ruby:2.5 security update

An update for the ruby:2.5 module is now available for Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions and Red Hat Enterprise Linux 8.8 Telecommunications Update Service. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability...

RockyLinux 9 : ruby:3.3 (RLSA-2026:33576)

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:33576 advisory. ruby: net-imap: Net::IMAP: Denial of Service via crafted IMAP responses CVE-2026-42245 ruby/net-imap: ruby: Net::IMAP: IMAP Command Injection via Symbol...

ruby:2.5 security update

An update is available for module.rubygem-abrt, rubygem-bson, rubygem-mongo, module.ruby, module.rubygem-mysql2, module.rubygem-mongo, rubygem-mysql2, ruby, rubygem-pg, module.rubygem-bson, rubygem-abrt, rubygem-bundler, module.rubygem-pg, module.rubygem-bundler. This update affects Rocky Linux 8...

RLSA-2026:33515 Important: ruby:3.3 security 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: ruby: net-imap: Net::IMAP: Denial of Service via crafted IMAP responses CVE-2026-42245 ruby/net-imap: ruby: Net::IMAP: IMAP Comman...

DEBIAN-CVE-2026-47240

Net::IMAP implements Internet Message Access Protocol IMAP client functionality in Ruby. Prior to 0.6.5 and 0.5.15, several Net::IMAP commands accept a "raw data" argument that is sent verbatim after validation to prevent command injection. However, if a server does not support non-synchronizing...

UBUNTU-CVE-2026-47240

Net::IMAP implements Internet Message Access Protocol IMAP client functionality in Ruby. Prior to 0.6.5 and 0.5.15, several Net::IMAP commands accept a "raw data" argument that is sent verbatim after validation to prevent command injection. However, if a server does not support non-synchronizing...

CVE-2026-47240

Summary of CVE-2026-47240 (Net::IMAP, Ruby) : The vulnerability affects Net::IMAP’s IMAP client in Ruby, where several commands accept a “raw data” argument that is validated but could still be exploited if a server does not support non-synchronizing literals. In that case, a server may interpret...

CVE-2026-47241

Net::IMAP implements Internet Message Access Protocol IMAP client functionality in Ruby. Prior to 0.6.5 and 0.5.15, several Net::IMAP commands accept a raw string argument which is only validated to prevent CRLF injection and then sent verbatim. If this string is derived from user-controlled inpu...

CVE-2026-42257

A flaw was found in Net::IMAP, a Ruby library for Internet Message Access Protocol IMAP client functionality. Several Net::IMAP commands accept raw string arguments that are sent to the server without proper validation or escaping. If an application uses user-controlled input for these arguments,...

DEBIAN-CVE-2026-42256

Net::IMAP implements Internet Message Access Protocol IMAP client functionality in Ruby. From versions 0.4.0 to before 0.4.24, 0.5.0 to before 0.5.14, and 0.6.0 to before 0.6.4, when authenticating a connection with SCRAM-SHA1 or SCRAM-SHA256, a hostile server can perform a computational...

CVE-2026-42257

CVE-2026-42257 affects the Ruby Net::IMAP library where, prior to versions 0.4.24, 0.5.14, and 0.6.4, several IMAP commands accept a raw string argument sent to the server without validation or escaping. If derived from user input, this can include CRLF sequences and allow injection of arbitrary ...

EUVD-2026-28925

Net::IMAP implements Internet Message Access Protocol IMAP client functionality in Ruby. From versions 0.4.0 to before 0.4.24, 0.5.0 to before 0.5.14, and 0.6.0 to before 0.6.4, when authenticating a connection with SCRAM-SHA1 or SCRAM-SHA256, a hostile server can perform a computational...

CRLF Injection

Net::IMAP is vulnerable to CRLF Injection. The vulnerability is due to insufficient validation and escaping of raw string arguments passed to several IMAP commands, which allows an attacker to inject CRLF sequences and execute arbitrary IMAP commands by supplying crafted user-controlled input...

Ruby net-imap < 0.4.24 / 0.5.x < 0.5.14 / 0.6.x < 0.6.4 Multiple Vulnerabilities

The version of the net-imap Ruby library installed on the remote host is prior to 0.4.24, 0.5.x prior to 0.5.14, or 0.6.x prior to 0.6.4. It is, therefore, affected by multiple vulnerabilities. - The Net::IMAP::ResponseReader component is affected by a quadratic time complexity flaw when parsing...

Moderate: Red Hat Security Advisory: python3.9 security update

An update for python3.9 is now available for Red Hat Enterprise Linux 9.6 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available fo...