CVE-2026-35464

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 v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.6 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/pyload/pyload/commit/c4cf995a2803bdbe388addfc2b0f323277efc0e1	Patch
https://github.com/pyload/pyload/security/advisories/GHSA-4744-96p5-mp2j	Exploit Mitigation Vendor Advisory
https://github.com/pyload/pyload/security/advisories/GHSA-r7mc-x6x7-cqxx	Exploit Vendor Advisory
https://www.cve.org/CVERecord?id=CVE-2026-33509	Third Party Advisory
https://github.com/pyload/pyload/security/advisories/GHSA-4744-96p5-mp2j	Exploit Mitigation Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:pyload:pyload:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-04-07 15:17

Updated : 2026-06-17 10:40

NVD link : CVE-2026-35464

Mitre link : CVE-2026-35464

CVE.ORG link : CVE-2026-35464

JSON object : View

Products Affected

pyload

pyload

CWE

CWE-502

Deserialization of Untrusted Data

CWE-863

Incorrect Authorization

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