pyLoad is a free and open-source download manager written in Python. In 0.5.0b3.dev96 and earlier, the parse_urls API function in src/pyload/core/api/__init__.py fetches arbitrary URLs server-side via get_url(url) (pycurl) without any URL validation, protocol restriction, or IP blacklist. An authenticated user with ADD permission can make HTTP/HTTPS requests to internal network resources and cloud metadata endpoints, read local files via file:// protocol (pycurl reads the file server-side), interact with internal services via gopher:// and dict:// protocols, and enumerate file existence via error-based oracle (error 37 vs empty response).
History

Mon, 20 Apr 2026 17:15:00 +0000

Type Values Removed Values Added
First Time appeared Pyload-ng Project
Pyload-ng Project pyload-ng
CPEs cpe:2.3:a:pyload-ng_project:pyload-ng:*:*:*:*:*:python:*:*
Vendors & Products Pyload-ng Project
Pyload-ng Project pyload-ng

Tue, 07 Apr 2026 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 07 Apr 2026 09:45:00 +0000

Type Values Removed Values Added
First Time appeared Pyload
Pyload pyload
Vendors & Products Pyload
Pyload pyload

Mon, 06 Apr 2026 20:00:00 +0000

Type Values Removed Values Added
Description pyLoad is a free and open-source download manager written in Python. In 0.5.0b3.dev96 and earlier, the parse_urls API function in src/pyload/core/api/__init__.py fetches arbitrary URLs server-side via get_url(url) (pycurl) without any URL validation, protocol restriction, or IP blacklist. An authenticated user with ADD permission can make HTTP/HTTPS requests to internal network resources and cloud metadata endpoints, read local files via file:// protocol (pycurl reads the file server-side), interact with internal services via gopher:// and dict:// protocols, and enumerate file existence via error-based oracle (error 37 vs empty response).
Title pyLoad has SSRF in parse_urls API endpoint via unvalidated URL parameter
Weaknesses CWE-918
References
Metrics cvssV3_1

{'score': 7.7, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-04-07T14:03:28.344Z

Reserved: 2026-04-01T17:26:21.134Z

Link: CVE-2026-35187

cve-icon Vulnrichment

Updated: 2026-04-07T14:03:20.363Z

cve-icon NVD

Status : Analyzed

Published: 2026-04-06T20:16:27.207

Modified: 2026-04-20T17:05:58.587

Link: CVE-2026-35187

cve-icon Redhat

No data.