CVE-2026-33509
pyLoad SETTINGS Permission Users Can Achieve Remote Code Execution via Unrestricted Reconnect Script Configuration
Impact
pyLoad is a free and open-source download manager written in Python. From version 0.4.0 to before version 0.5.0b3.dev97, the set_config_value() API endpoint allows users with the non-admin SETTINGS permission to modify any configuration option without restriction. The reconnect.script config option controls a file path that is passed directly to subprocess.run() in the thread manager's reconnect logic. A SETTINGS user can set this to any executable file on the system, achieving Remote Code Execution. The only validation in set_config_value() is a hardcoded check for general.storage_folder — all other security-critical settings including reconnect.script are writable without any allowlist or path restriction. This issue has been patched in version 0.5.0b3.dev97.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| pip | pyload-ng | >= 0.4.0, <= 0.5.0b3.dev96 | none recorded |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Pyload | Pyload | from 0.4 through 0.4.20 |
| Pyload-Ng Project | Pyload-Ng | from 0.5.0a5.dev528 before 0.5.0b3.dev97 |