high7.1
CVE-2026-29778
pyLoad has an Arbitrary File Write via Path Traversal in edit_package()
Impact
The edit_package() function implements insufficient sanitization for the pack_folder parameter. The current protection relies on a single-pass string replacement of "../", which can be bypassed using crafted recursive traversal sequences. Exploitation An authenticated user with MODIFY permission can bypass the sanitization by submitting a payload such as: `pack_folder=..././..././..././tmp` After the single-pass replacement, this becomes: `../../../tmp` Because the traversal sequences are not properly validated, the resulting normalized path escapes the intended storage directory and writes files to /tmp or other locations.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| pip | pyload-ng | >= 0.5.0b3.dev13, <= 0.5.0b3.dev96 | 0.5.0b3.dev97 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Pyload-Ng Project | Pyload-Ng | from 0.5.0b3.dev13 before 0.5.0b3.dev97 |