CVE-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 v4.0 GitHub

9.3 CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

CVSS v3.1 NVD

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

EPSS

2.46% chance of exploitation in the next 30 days, 84th percentile

Published

2022-12-06

Updated

2025-04-23

Proof-of-concept exploits (1)

• http://packetstormsecurity.com/files/170127/py7zr-0.20.0-Directory-Traversal.html

Security advisories

• miurahr/py7zr/commit/1bb43f17515c7f69673a1c88ab9cc72a7bbef406
• https://lessonsec.com/cve/cve-2022-44900
• advisories/GHSA-m8xw-9x5x-6vh3

References

• CVE Record
• NVD entry