CVE-2026-42315
pyLoad: Path Traversal via Package Folder Name in set_package_data
Description
pyLoad is a free and open-source download manager written in Python. Prior to 0.5.0b3.dev100, when passing a folder name in the set_package_data() API function call inside the data object with key "_folder", there is no sanitization at all, allowing a user with Perms.MODIFY to specify arbitrary directories as download locations for a package. This vulnerability is fixed in 0.5.0b3.dev100.
INFO
Published Date :
May 11, 2026, 6:16 p.m.
Last Modified :
May 15, 2026, 2:29 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-42315
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | HIGH | MITRE-CVE | ||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update pyLoad to version 0.5.0b3.dev100.
- Verify package data is sanitized.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-42315.
| URL | Resource |
|---|---|
| https://github.com/pyload/pyload/security/advisories/GHSA-838g-gr43-qqg9 | Exploit Vendor Advisory |
| https://github.com/pyload/pyload/security/advisories/GHSA-838g-gr43-qqg9 | Exploit Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-42315 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-42315
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-42315 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-42315 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Reanalysis by [email protected]
May. 15, 2026
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:pyload-ng_project:pyload-ng:*:*:*:*:*:python:*:* versions up to (including) 0.5.0b3.dev100 OR *cpe:2.3:a:pyload-ng_project:pyload-ng:*:*:*:*:*:python:*:* versions up to (excluding) 0.5.0b3.dev100 -
Initial Analysis by [email protected]
May. 15, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N Added CPE Configuration OR *cpe:2.3:a:pyload-ng_project:pyload-ng:*:*:*:*:*:python:*:* versions up to (including) 0.5.0b3.dev100 Added Reference Type CISA-ADP: https://github.com/pyload/pyload/security/advisories/GHSA-838g-gr43-qqg9 Types: Exploit, Vendor Advisory Added Reference Type GitHub, Inc.: https://github.com/pyload/pyload/security/advisories/GHSA-838g-gr43-qqg9 Types: Exploit, Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
May. 11, 2026
Action Type Old Value New Value Added Reference https://github.com/pyload/pyload/security/advisories/GHSA-838g-gr43-qqg9 -
New CVE Received by [email protected]
May. 11, 2026
Action Type Old Value New Value Added Description pyLoad is a free and open-source download manager written in Python. Prior to 0.5.0b3.dev100, when passing a folder name in the set_package_data() API function call inside the data object with key "_folder", there is no sanitization at all, allowing a user with Perms.MODIFY to specify arbitrary directories as download locations for a package. This vulnerability is fixed in 0.5.0b3.dev100. Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H Added CWE CWE-22 Added CWE CWE-36 Added Reference https://github.com/pyload/pyload/security/advisories/GHSA-838g-gr43-qqg9