CVE-2026-35592
Description
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.
How to fix
- pyload-ng0.5.0b3.dev97 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| pyload-ng_project pyload-ng | v ≤ 0.5.0b3.dev96 | — |
| pyload-ngPyPI | v < 0.5.0b3.dev97 | 0.5.0b3.dev97 |
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