PT-2026-30897 · Pyload · Pyload

Published

2026-04-07

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Updated

2026-04-07

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CVE-2026-35592

CVSS v3.1

5.3

Medium

AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N
pyLoad is a free and open-source download manager written in Python. Prior to 0.5.0b3.dev97, the safe extractall() function in src/pyload/plugins/extractors/UnTar.py uses os.path.commonprefix() for its path traversal check, which performs character-level string comparison rather than path-level comparison. This allows a specially crafted tar archive to write files outside the intended extraction directory. The correct function os.path.commonpath() was added to the codebase in the CVE-2026-32808 fix (commit 5f4f0fa) but was never applied to safe extractall(), making this an incomplete fix. This vulnerability is fixed in 0.5.0b3.dev97.

Fix

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

CVE-2026-35592

Affected Products

Pyload