Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Pyload | Pyload | >= 0.4, <= 0.4.20 |
| Pyload-Ng Project | Pyload-Ng | >= 0.5.0a5.dev528, < 0.5.0b3.dev97 |
Related Weaknesses (CWE)
References
- https://github.com/pyload/pyload/security/advisories/GHSA-r7mc-x6x7-cqxxExploitMitigationVendor Advisory
FAQ
What is CVE-2026-33509?
CVE-2026-33509 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 pe...
How severe is CVE-2026-33509?
CVE-2026-33509 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-33509?
Check the references section above for vendor advisories and patch information. Affected products include: Pyload Pyload, Pyload-Ng Project Pyload-Ng.