Is CVE-2026-35464 actively exploited?

CVE-2026-35464 has no public evidence of in-the-wild exploitation as of 2026-04-23.

What is the CVSS score for CVE-2026-35464?

CVE-2026-35464 has a CVSS score of 7.5 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2026-35464?

Patch guidance is available from pyload security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2026-35464.

Fix CVE-2026-35464 - HIGH pyload pyload

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 Metrics

Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector: network
Complexity: high
Privileges: low
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-502 · Insecure Deserialization CWE-863 · Incorrect Authorization

Metadata

Primary Vendor: PYLOAD
Published: 4/7/2026
Last Modified: 4/23/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2026-35464

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary