CVE-2026-55107

Kobako is a Ruby gem that embeds a Wasm-isolated mruby interpreter inside applications, allowing execution of untrusted Ruby scripts LLM-generated code, user formulas, student submissions, third-party plugins in-process without giving them access to host memory, files, network, or credentials. Fr...

CVE-2026-55107

The Kobako Ruby gem (versions 0.1.0 through 0.9.0 ) contains a critical sandbox escape vulnerability. The root cause is an unguarded Object#public_send sink in the transport dispatcher, which allows guest mruby scripts to execute arbitrary Ruby in the host process. Attackers can pivot through the...

CVE-2026-55107 Kobako Vulnerable to Sandbox Escape: guest eval reaches host RCE via method_missing → public_send (any bound Service)

Kobako is a Ruby gem that embeds a Wasm-isolated mruby interpreter inside applications, allowing execution of untrusted Ruby scripts LLM-generated code, user formulas, student submissions, third-party plugins in-process without giving them access to host memory, files, network, or credentials. Fr...

CVE-2026-55107 Kobako Vulnerable to Sandbox Escape: guest eval reaches host RCE via method_missing → public_send (any bound Service)

Kobako is a Ruby gem that embeds a Wasm-isolated mruby interpreter inside applications, allowing execution of untrusted Ruby scripts LLM-generated code, user formulas, student submissions, third-party plugins in-process without giving them access to host memory, files, network, or credentials. Fr...

CVE-2026-55107 Kobako Vulnerable to Sandbox Escape: guest eval reaches host RCE via method_missing → public_send (any bound Service)

Kobako is a Ruby gem that embeds a Wasm-isolated mruby interpreter inside applications, allowing execution of untrusted Ruby scripts LLM-generated code, user formulas, student submissions, third-party plugins in-process without giving them access to host memory, files, network, or credentials. Fr...

EUVD-2026-75871

A NULL pointer dereference vulnerability exists in the Prism parser component of mruby 4.0.0. An attacker can provide a specially crafted Ruby source file that triggers the parser to pass a NULL pointer to nonnull string handling functions, resulting in undefined behavior and application crash...

Linux Distros Unpatched Vulnerability : CVE-2026-79590

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A NULL pointer dereference vulnerability exists in the Prism parser component of mruby 4.0.0. An attacker can provide a specially crafted Ruby source file that...

CVE-2026-79590

A NULL pointer dereference vulnerability exists in the Prism parser component of mruby 4.0.0. An attacker can provide a specially crafted Ruby source file that triggers the parser to pass a NULL pointer to nonnull string handling functions, resulting in undefined behavior and application crash...

UBUNTU-CVE-2026-79590

A NULL pointer dereference vulnerability exists in the Prism parser component of mruby 4.0.0. An attacker can provide a specially crafted Ruby source file that triggers the parser to pass a NULL pointer to nonnull string handling functions, resulting in undefined behavior and application crash...

DEBIAN-CVE-2026-79590

A NULL pointer dereference vulnerability exists in the Prism parser component of mruby 4.0.0. An attacker can provide a specially crafted Ruby source file that triggers the parser to pass a NULL pointer to nonnull string handling functions, resulting in undefined behavior and application crash...

CVE-2026-79590

A NULL pointer dereference vulnerability exists in the Prism parser component of mruby 4.0.0. An attacker can provide a specially crafted Ruby source file that triggers the parser to pass a NULL pointer to nonnull string handling functions, resulting in undefined behavior and application crash...

CVE-2026-79590: NULL Pointer Dereference

A NULL pointer dereference vulnerability exists in the Prism parser component of mruby 4.0.0. An attacker can provide a specially crafted Ruby source file that triggers the parser to pass a NULL pointer to nonnull string handling functions, resulting in undefined behavior and application crash...

CVE-2026-79590

A NULL pointer dereference vulnerability exists in the Prism parser component of mruby 4.0.0 . An attacker can provide a specially crafted Ruby source file that triggers the parser to pass a NULL pointer to nonnull string handling functions, leading to undefined behavior and an application crash ...

CVE-2026-79590

A NULL pointer dereference vulnerability exists in the Prism parser component of mruby 4.0.0. An attacker can provide a specially crafted Ruby source file that triggers the parser to pass a NULL pointer to nonnull string handling functions, resulting in undefined behavior and application crash...

CVE-2026-79590

A NULL pointer dereference vulnerability exists in the Prism parser component of mruby 4.0.0. An attacker can provide a specially crafted Ruby source file that triggers the parser to pass a NULL pointer to nonnull string handling functions, resulting in undefined behavior and application crash...

PT-2026-89615

Name of the Vulnerable Software and Affected Versions mruby version 4.0.0 Description A NULL pointer dereference occurs in the Prism parser component. An attacker can use a specially crafted Ruby source file to cause the parser to pass a NULL pointer to nonnull string handling functions, leading ...

CVE-2026-79590

A NULL pointer dereference vulnerability exists in the Prism parser component of mruby 4.0.0. An attacker can provide a specially crafted Ruby source file that triggers the parser to pass a NULL pointer to nonnull string handling functions, resulting in undefined behavior and application crash...

CVE-2026-79590

A NULL pointer dereference vulnerability exists in the Prism parser component of mruby 4.0.0. An attacker can provide a specially crafted Ruby source file that triggers the parser to pass a NULL pointer to nonnull string handling functions, resulting in undefined behavior and application crash...

A NULL pointer dereference vulnerability in mruby 4.0.0

A NULL pointer dereference vulnerability exists in the Prism parser component of mruby 4.0.0. An attacker can provide a specially crafted Ruby source file that triggers the parser to pass a NULL pointer to nonnull string handling functions, resulting in undefined behavior and application crash...

EUVD-2026-74787

mrubyc through 4.0.0 contains a null pointer dereference vulnerability in the openter handler in src/vm.c when processing untrusted bytecode. Attackers can craft malicious .mrb bytecode files with OPENTER instructions at the top level to crash the embedding application and cause denial of service...