CVE-2026-55195 : 詳細

CVE-2026-55195

2026-07-08
21h16 +00:00
2026-10-25
17h10 +00:00
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CVE の説明

py7zr is a Python-based library and utility to support 7zip archive compression, decompression, encryption and decryption. Prior to 1.1.3, py7zr's Worker.decompress() extracted archive entries without tracking total decompressed size, allowing a crafted .7z file such as a 15.6 KB archive that expands to 100 MB to exhaust disk or memory before extraction completes. This issue is fixed in version 1.1.3.

CVE の情報

関連する弱点

CWE-ID 弱点名 出典
CWE-409 Improper Handling of Highly Compressed Data (Data Amplification)
The product does not handle or incorrectly handles a compressed input with a very high compression ratio that produces a large output.

参考資料