Amazon Linux 2 : ruby, --advisory ALAS2-2026-3284 (ALAS-2026-3284)

The version of ruby installed on the remote host is prior to 2.0.0.648-36. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2026-3284 advisory. ERB is a templating system for Ruby. Ruby 2.7.0 before ERB 2.2.0 was published on rubygems.org introduced an @init instance...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: ruby (UTSA-2026-016801)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-016801 advisory. ERB is a templating system for Ruby. Ruby 2.7.0 before ERB 2.2.0 was published on rubygems.org introduced an @init instance variable guard in ERBresult and ERBrun to...

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

Summary Ruby 2.7.0 before ERB 2.2.0 was published on rubygems.org introduced an @init instance variable guard in ERBresult and ERBrun to prevent code execution when an ERB object is reconstructed via Marshal.load deserialization. However, three other public methods that also evaluate @src via eva...

Protection Mechanism Failure

Overview Affected versions of this package are vulnerable to Protection Mechanism Failure in the defmodule, defmethod, or defclass methods due to insufficient deserialization guards. An attacker can achieve arbitrary code execution by supplying crafted input to Marshal.load in a Ruby application...

DEBIAN-CVE-2026-41316

ERB is a templating system for Ruby. Ruby 2.7.0 before ERB 2.2.0 was published on rubygems.org introduced an @init instance variable guard in ERBresult and ERBrun to prevent code execution when an ERB object is reconstructed via Marshal.load deserialization. However, three other public methods th...

CVE-2026-41316

ERB is a templating system for Ruby. Ruby 2.7.0 before ERB 2.2.0 was published on rubygems.org introduced an @init instance variable guard in ERBresult and ERBrun to prevent code execution when an ERB object is reconstructed via Marshal.load deserialization. However, three other public methods th...

CVE-2026-41316 ERB has an @_init deserialization guard bypass via def_module / def_method / def_class

ERB is a templating system for Ruby. Ruby 2.7.0 before ERB 2.2.0 was published on rubygems.org introduced an @init instance variable guard in ERBresult and ERBrun to prevent code execution when an ERB object is reconstructed via Marshal.load deserialization. However, three other public methods th...

CVE-2026-41316

ERB is a templating system for Ruby. Ruby 2.7.0 before ERB 2.2.0 was published on rubygems.org introduced an @init instance variable guard in ERBresult and ERBrun to prevent code execution when an ERB object is reconstructed via Marshal.load deserialization. However, three other public methods th...

CVE-2026-41316 ERB has an @_init deserialization guard bypass via def_module / def_method / def_class

ERB is a templating system for Ruby. Ruby 2.7.0 before ERB 2.2.0 was published on rubygems.org introduced an @init instance variable guard in ERBresult and ERBrun to prevent code execution when an ERB object is reconstructed via Marshal.load deserialization. However, three other public methods th...

EUVD-2026-25385

ERB is a templating system for Ruby. Ruby 2.7.0 before ERB 2.2.0 was published on rubygems.org introduced an @init instance variable guard in ERBresult and ERBrun to prevent code execution when an ERB object is reconstructed via Marshal.load deserialization. However, three other public methods th...

CVE-2026-41316 ERB has an @_init deserialization guard bypass via def_module / def_method / def_class

ERB is a templating system for Ruby. Ruby 2.7.0 before ERB 2.2.0 was published on rubygems.org introduced an @init instance variable guard in ERBresult and ERBrun to prevent code execution when an ERB object is reconstructed via Marshal.load deserialization. However, three other public methods th...

CVE-2026-41316

ERB has a deserialization guard for @_init in ERB#result and ERB#run, but public methods ERB#def_method, ERB#def_module, and ERB#def_class were not guarded. The vulnerability arises when Marshal.load is used on untrusted data with erb loaded, allowing code execution via the unguarded paths. Patch...

CVE-2026-41316

ERB is a templating system for Ruby. Ruby 2.7.0 before ERB 2.2.0 was published on rubygems.org introduced an @init instance variable guard in ERBresult and ERBrun to prevent code execution when an ERB object is reconstructed via Marshal.load deserialization. However, three other public methods th...

ERB 安全漏洞

ERB is an open-source embedded Ruby template processing tool developed by The Ruby Programming Language. There is a security vulnerability in ERB, which stems from the lack of protection for @src in methods like ERBdefmethod, ERBdefmodule, and ERBdefmodule. This vulnerability could allow attacker...

PT-2026-33982

Name of the Vulnerable Software and Affected Versions ERB versions prior to 6.0.1.1 ERB versions prior to 6.0.4 ERB versions prior to 4.0.3.1 ERB versions prior to 4.0.4.1 Ruby versions prior to 4.0.3 Description A deserialization guard bypass exists in ERB involving the init variable. This issue...

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...

GHSA-33QG-7WPP-89CQ Rack::Session::Cookie secrets: decrypt failure fallback enables secretless session forgery and Marshal deserialization

Rack::Session::Cookie incorrectly handles decryption failures when configured with secrets:. If cookie decryption fails, the implementation falls back to a default decoder instead of rejecting the cookie. This allows an unauthenticated attacker to supply a crafted session cookie that is accepted ...

CVE-2026-39324 Rack::Session::Cookie secrets: decrypt failure fallback enables secretless session forgery and Marshal deserialization

Rack::Session is a session management implementation for Rack. From 2.0.0 to before 2.1.2, Rack::Session::Cookie incorrectly handles decryption failures when configured with secrets:. If cookie decryption fails, the implementation falls back to a default decoder instead of rejecting the cookie...

CVE-2026-39324 Rack::Session::Cookie secrets: decrypt failure fallback enables secretless session forgery and Marshal deserialization

Rack::Session is a session management implementation for Rack. From 2.0.0 to before 2.1.2, Rack::Session::Cookie incorrectly handles decryption failures when configured with secrets:. If cookie decryption fails, the implementation falls back to a default decoder instead of rejecting the cookie...

Important: ocaml

Issue Overview: In OCaml before 4.14.3 and 5.x before 5.4.1, a buffer over-read in Marshal deserialization runtime/intern.c enables remote code execution through a multi-phase attack chain. The vulnerability stems from missing bounds validation in the readblock function, which performs unbounded...