{"id":"CVE-2022-44900","aliases":["GHSA-m8xw-9x5x-6vh3","PYSEC-2022-42998"],"url":"https://o3.security/vulnerability/CVE-2022-44900","summary":"py7zr directory traversal vulnerability","details":"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.","published":"2022-12-06T00:00:00Z","modified":"2026-08-07T11:31:35.628906238Z","cvss":{"score":9.1,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":2,"affectedPackages":[{"ecosystem":"PyPI","name":"py7zr","fixedVersion":"0.20.1"}],"fix":{"url":"https://github.com/miurahr/py7zr/commit/1bb43f17515c7f69673a1c88ab9cc72a7bbef406","label":"miurahr/py7zr@1bb43f1"},"references":[{"type":"WEB","url":"http://packetstormsecurity.com/files/170127/py7zr-0.20.0-Directory-Traversal.html"},{"type":"WEB","url":"https://lessonsec.com/cve/cve-2022-44900/"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/44xxx/CVE-2022-44900.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-44900"},{"type":"FIX","url":"https://github.com/miurahr/py7zr/commit/1bb43f17515c7f69673a1c88ab9cc72a7bbef406"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T11:31:35.628906238Z"}}