pypi package report

Is py7zr safe?

4 known vulnerabilities, worst severity CRITICAL.

// reach

42 direct dependencies

11 carry known advisories, worst CRITICAL

27 packages depend on it

an advisory here reaches each of them

Create a free accountfor every dependency path, dependent and what to upgrade

// ai model usage

No published models are known to use this package.

cvss

9.1

critical

CVSS v3.1 base score out of 10

epss

2.5%

medium

chance of exploitation in 30 days, 85th percentile of all CVEs

xyz score

4.9

medium

CyberXYZ composite out of 10

fig. 01 — GHSA-m8xw-9x5x-6vh3, the advisory selected below

// 4 advisories

GHSA-m8xw-9x5x-6vh3

CRITICALGitHub ratingCVE-2022-44900

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.

// cvss v3.1 vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: High
Availability: None

Checked 2026-11-07 at 21:59 UTC. The most recent advisory here was published 2026-06-19. Updated continuously from NVD, GHSA, OSV and CNA feeds.