EUVD-2026-39050

py7zr is a Python-based library and utility to support 7zip archive compression, decompression, encryption and decryption. Versions 1.1.2 and below contain an an arbitrary file write vulnerability, which allows symbolic links to be recreated outside the destination directory via crafted malicious...

py7zr: O(n^2) algorithmic complexity DoS in PackInfo._read()

Summary PackInfo.read uses an On^2 cumulative sum pattern where numstreams is read directly from the archive header. A crafted .7z archive with a large numstreams value causes excessive CPU consumption during SevenZipFile.init — no extraction is needed. A 50 KB archive takes 7 seconds of CPU time...

EQGRP

This repository is an exploit module for the Linux operating system, specifically targeting the 7z file archiver. The exploit is designed to take advantage of a vulnerability in the 7z library, which is used by the 7z file archiver. The vulnerability allows an attacker to execute arbitrary code o...

Self-Extracting Archives created by 7-ZIP32.DLL may insecurely load Dynamic Link Libraries

Overview 7-ZIP32.DLL is an open source library for compressing and decompressing 7z and zip format files. It can also create self-extracting archive files. Self-extracting archive files created by 7-ZIP32.DLL contain an issue with the DLL search path, which may lead to insecurely loading Dynamic...

DEBIAN-CVE-2016-9296

A null pointer dereference bug affects the 16.02 and many old versions of p7zip. A lack of null pointer check for the variable folders.PackPositions in function CInArchive::ReadAndDecodePackedStreams in CPP/7zip/Archive/7z/7zIn.cpp, as used in the 7z.so library and in 7z applications, will cause ...