pyLoad WindowsPhoneNotify addon SSRF via unguarded http.client

Severity: medium · CVSS 6.4 · Published 2026-10-09

pyLoad is a download manager that uses plugins to notify users of download completion. The WindowsPhoneNotify addon can be misconfigured by non-admin users to send HTTP requests to arbitrary internal network destinations, allowing attackers to probe internal services, access cloud metadata endpoints, or trigger state changes on internal systems that the attacker cannot reach directly.

Technologies: pyLoad, pyload-ng (PyPI). Vendors: pyLoad, PyPI.

Quick answers

Is This vulnerability exploited in the wild?
No. Junglewise Threat Intelligence has no report of This vulnerability being exploited in the wild.
How severe is This vulnerability?
Medium severity, with a CVSS score of 6.4, published 9 October 2026.
Which products and versions are affected?
pyLoad 0.5.0b3.dev101 and earlier; pyload-ng (PyPI) <= 0.5.0b3.dev101.
Is there a fix for This vulnerability?
No fixed version is recorded yet. Restrict the SETTINGS permission to trusted accounts and ensure the pyLoad host cannot reach sensitive internal endpoints such as cloud metadata services (169.254.169.254). If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is This vulnerability attacked?
It is attacked over the network, in a software library.
Am I affected?
Check whether you run pyLoad or pyload-ng (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

Restrict the SETTINGS permission to trusted accounts and ensure the pyLoad host cannot reach sensitive internal endpoints such as cloud metadata services (169.254.169.254).

Technical details

The vulnerability is a Server-Side Request Forgery (SSRF) in the WindowsPhoneNotify addon's send() method, which uses Python's http.client.HTTPConnection to connect to a host taken from the unvalidated pushurl configuration parameter. A non-admin user with the SETTINGS permission can modify the notifier configuration and enable the addon via the web API because these plugin options are not in the admin-only set. When any download completes, the addon issues a blind HTTP POST to the attacker-controlled destination, bypassing pyLoad's SSRF protection which only guards the pycurl-based request path.

Affected products

  • pyLoad pyLoad 0.5.0b3.dev101 and earlier

Timeline

  • 2026-10-09: disclosed

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