CVE-2026-55195

A flaw was found in py7zr, a Python library for 7zip archive handling. This vulnerability allows a remote attacker to cause a Denial of Service DoS by providing a specially crafted .7z file. The Worker.decompress function fails to track the total decompressed size, enabling a small archive to...

CVE-2026-55195

py7zr is a Python-based library and utility to support 7zip archive compression, decompression, encryption and decryption. Prior to 1.1.3, py7zr's Worker.decompress extracted archive entries without tracking total decompressed size, allowing a crafted .7z file such as a 15.6 KB archive that expan...