py7zr vulnerabilities (PyPI)

4 vulnerabilities.

• py7zr PyPI py7zr: O(n^2) algorithmic complexity DoS in PackInfo._read() CVE-2026-55206 Fix available 8.7 HighJune 19, 2026
• py7zr PyPI py7zr: Decompression bomb (zip bomb) denial of service via unchecked extraction size CVE-2026-55195 Fix available 8.7 HighJune 19, 2026
• py7zr PyPI py7zr: Arbitrary File Write Vulnerability CVE-2026-23879 Fix available 8.0 HighJune 19, 2026
• py7zr PyPI py7zr directory traversal vulnerability CVE-2022-44900 Public exploitFix available 9.1 CriticalDecember 6, 2022