CVE-2026-35187

HIGH EPSS 18.4%
Published Apr 6, 20262mo ago · Modified Jun 17, 20262w ago
7.7 CVSS 3.1
High
Find Similar
Published Apr 6, 2026 2mo ago
Last Modified Jun 17, 2026 2w ago

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).

CVSS Details

Base Score
7.7
Exploitability
3.1
Impact
4.0
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Changed
Confidentiality High
Integrity None
Availability None

Threat Intelligence

EPSS Exploit Probability
18.4% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-918 Server-Side Request Forgery (SSRF) Validation

Affected Products 1

VendorProductVersionRange
pyload-ng_projectpyload-ng* <0.5.0b3.dev97

References 2

  • github.com https://github.com/pyload/pyload/commit/4032e57d61d8f864e39f4dcfdb567527a50a9e1f
    Patch
  • github.com https://github.com/pyload/pyload/security/advisories/GHSA-2wvg-62qm-gj33
    ExploitMitigationVendor Advisory

Remediation

  • github.com https://github.com/pyload/pyload/commit/4032e57d61d8f864e39f4dcfdb567527a50a9e1f
    Patch