CVE-2022-44900: PY7ZR Project PY7ZR

Critical severity, CVSS 9.1. EPSS: 2.5% chance of exploitation in the next 30 days.

A directory traversal vulnerability in the SevenZipFile.extractall() function of the python library py7zr v0.20.0 and earlier allows attackers to write arbitrary files via extracting a crafted 7z file.

Affected products

• PY7ZR Project PY7ZR: before 0.20.1 (fixed in 0.20.1)

Published 2022-12-06. Last modified 2026-06-17.