CVE-2026-35464
HIGH EPSS 40.7%
Published Apr 7, 20262mo ago · Modified Jun 17, 20261w ago
7.5 CVSS 3.1
Published Apr 7, 2026 2mo ago
Last Modified Jun 17, 2026 1w ago
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 Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector Network
Attack Complexity High
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High
Threat Intelligence
EPSS Exploit Probability
40.7% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available
Weaknesses 2
CWE-502 Deserialization of Untrusted Data Validation
CWE-863 Incorrect Authorization Authorization
Affected Products 1
| Vendor | Product | Version | Range |
|---|---|---|---|
| pyload | pyload | * | <2026-04-02 |
References 4
- github.com https://github.com/pyload/pyload/commit/c4cf995a2803bdbe388addfc2b0f323277efc0e1
- github.com https://github.com/pyload/pyload/security/advisories/GHSA-4744-96p5-mp2j
- github.com https://github.com/pyload/pyload/security/advisories/GHSA-r7mc-x6x7-cqxx
- cve.org https://www.cve.org/CVERecord?id=CVE-2026-33509
Remediation
- github.com https://github.com/pyload/pyload/commit/c4cf995a2803bdbe388addfc2b0f323277efc0e1