CVE-2022-44900
CRITICAL9.1EPSS 25.0%py7zr - security update
Published: 12/6/2022Modified: 4/28/2026
Description
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 packages (4)
- Debian/py7zrfrom 0, < 0.11.3+dfsg-1+deb11u1
- Debian/py7zrfrom 0, < 0.11.3+dfsg-1+deb11u1
- PyPI/py7zrfrom 0, < 0.20.1
- PyPI/py7zrfrom 0, < 1bb43f17515c7f69673a1c88ab9cc72a7bbef406 | from 0, < 0.20.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | CRITICAL9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
References (9)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2022-44900
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2022-44900
- PATCHhttps://github.com/miurahr/py7zr
- WEBhttp://packetstormsecurity.com/files/170127/py7zr-0.20.0-Directory-Traversal.html
- WEBhttps://advisory-inbox.githubapp.com/advisory_reviews/GHSA-m8xw-9x5x-6vh3
- WEBhttps://github.com/miurahr/py7zr/commit/1bb43f17515c7f69673a1c88ab9cc72a7bbef406
- WEBhttps://github.com/pypa/advisory-database/tree/main/vulns/py7zr/PYSEC-2022-42998.yaml
- WEBhttps://lessonsec.com/cve/cve-2022-44900
- WEBhttps://lessonsec.com/cve/cve-2022-44900/