Vulnerability Description
pyLoad is a free and open-source download manager written in Python. The fix for CVE-2026-33509 added an ADMIN_ONLY_OPTIONS set to block non-admin users from modifying security-critical config options. The storage_folder option is not in this set and passes the existing path restriction because the Flask session directory is outside both PKGDIR and userdir. A user with SETTINGS and ADD permissions can redirect downloads to the Flask filesystem session store, plant a malicious pickle payload as a predictable session file, and trigger arbitrary code execution when any HTTP request arrives with the corresponding session cookie. This vulnerability is fixed with commit c4cf995a2803bdbe388addfc2b0f323277efc0e1.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Pyload | Pyload | < 2026-04-02 |
Related Weaknesses (CWE)
References
- https://github.com/pyload/pyload/commit/c4cf995a2803bdbe388addfc2b0f323277efc0e1Patch
- https://github.com/pyload/pyload/security/advisories/GHSA-4744-96p5-mp2jExploitVendor AdvisoryMitigation
- https://github.com/pyload/pyload/security/advisories/GHSA-r7mc-x6x7-cqxxExploitVendor Advisory
- https://www.cve.org/CVERecord?id=CVE-2026-33509Third Party Advisory
- https://github.com/pyload/pyload/security/advisories/GHSA-4744-96p5-mp2jExploitVendor AdvisoryMitigation
FAQ
What is CVE-2026-35464?
CVE-2026-35464 is a vulnerability with a CVSS score of 7.5 (HIGH). pyLoad is a free and open-source download manager written in Python. The fix for CVE-2026-33509 added an ADMIN_ONLY_OPTIONS set to block non-admin users from modifying security-critical config options...
How severe is CVE-2026-35464?
CVE-2026-35464 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-2026-35464?
Check the references section above for vendor advisories and patch information. Affected products include: Pyload Pyload.