px-vm

Análisis de la VM de Auditor de PerimeterX Resumen Este repositorio documenta la ingeniería inversa de auditor.js de PerimeterX, una máquina virtual de bytecode utilizada como capa secundaria de huellas digitales en el pipeline de detección de bots de PX. Este análisis cubre: Extracción de byteco...

cve-2026-86547-mrubyc-op-enter

CVE-2026-86547 — mrubyc OPENTER 空指针解引用 针对 CVE-2026-86547 的独立概念验证，该漏洞是 mrubyc 的 openter 处理函数中存在的空指针解引用，影响至 4.0.0 版本。 概述 mrubyc 是面向嵌入式系统的轻量级 Ruby 实现。其字节码虚拟机将当前调用帧指针保存在 mrbcvm.callinfotail 中。在顶层，mrbcvmbegin 将该指针初始化为 NULL，因为此时尚不存在方法调用帧。 在 release4.0.0 中存在漏洞的 openter 实现里，处理函数在未先检查 vm-callinfotail 是否为...

MAL-2026-6704 Malicious code in base65-85x (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector d94610a3e8258b4f3f141cda2ade7a2bdeafbf9f8c1a9251d72c8b0c6dd4cff0 Package name base65-85x impersonates the widely-used base-x encoding library, with package.json copying base-x's homepage, bugs.url, and repository.u...

AZL-86369 CVE-2026-41257 affecting package jq for versions less than 1.7.1-6

jq is a command-line JSON processor. In 1.8.1 and earlier, the jq bytecode VM's data stack tracks its allocation size in a signed int. When the stack grows beyond ≈1 GiB via deeply nested generator forks, the doubling arithmetic overflows. The wrapped value is passed to realloc and then used for ...

ALPINE-CVE-2026-41257

jq is a command-line JSON processor. In 1.8.1 and earlier, the jq bytecode VM's data stack tracks its allocation size in a signed int. When the stack grows beyond ≈1 GiB via deeply nested generator forks, the doubling arithmetic overflows. The wrapped value is passed to realloc and then used for ...

PT-2026-39711

Name of the Vulnerable Software and Affected Versions jq versions prior to 1.8.2 Description The bytecode VM's data stack tracks its allocation size using a signed integer. When the stack grows beyond approximately 1 GiB through deeply nested generator forks, the doubling arithmetic overflows. Th...