CVEvulnerability

CVE-2026-42313

8.3 HIGH Published 2026-05-11 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2026-05-11
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.3 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
Weaknesses
CWE-441, CWE-863, CWE-918

Description

pyLoad is a free and open-source download manager written in Python. Prior to 0.5.0b3.dev100, the set_config_value() API method (@permission(Perms.SETTINGS)) in src/pyload/core/api/__init__.py gates security-sensitive options behind a hand-maintained allowlist ADMIN_ONLY_CORE_OPTIONS. The allowlist contains ("proxy", "username") and ("proxy", "password") — which protect the proxy credentials — but it does not include ("proxy", "enabled"), ("proxy", "host"), ("proxy", "port"), or ("proxy", "type"). Any authenticated user with the non-admin SETTINGS permission can enable proxying and point pyload at any host they control. From that point, every outbound download, captcha fetch, update check, and plugin HTTP call is transparently routed through the attacker. This is a direct continuation of the fix family CVE-2026-33509 / CVE-2026-35463 / CVE-2026-35464 / CVE-2026-35586, each of which patched a different missed option in the same allowlist. This vulnerability is fixed in 0.5.0b3.dev100.

Affected configurations

• pyload-ng project pyload-ng (< 0.5.0b3.dev100)

Related

Weakness · CWE (3)

  • CWE-441 Unintended Proxy or Intermediary weakness
  • CWE-863 Incorrect Authorization weakness
  • CWE-918 Server-Side Request Forgery weakness

References