Recommended action

Update pyload-ng to 0.5.0b3.dev97 if you use the affected versions. Test the change in a non-production environment first.

hol-guard supply-chain scan

What this means

pyLoad has an Arbitrary File Write via Path Traversal in edit_package() affects pyload-ng (pip). Severity is high. 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.

AI coding agents often install or upgrade packages automatically in pip. A high vulnerability in a dependency can be pulled into a project through a normal install or update without a human reviewing the change, expanding the blast radius from a single package to every agent workspace that depends on it.

Affected software

Recommended action

Update pyload-ng to 0.5.0b3.dev97 if you use the affected versions. Test the change in a non-production environment first.

hol-guard supply-chain scan

What this means

pyLoad has an Arbitrary File Write via Path Traversal in edit_package() affects pyload-ng (pip). Severity is high. 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.

AI coding agents often install or upgrade packages automatically in pip. A high vulnerability in a dependency can be pulled into a project through a normal install or update without a human reviewing the change, expanding the blast radius from a single package to every agent workspace that depends on it.

Affected software