Authorization Bypass Through User-Controlled Key Affecting pyload-ng package, versions [,0.5.0b3.dev97)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-PYTHON-PYLOADNG-15871385
- published1 Apr 2026
- disclosed24 Mar 2026
- creditYue (Knox) Liu
Introduced: 24 Mar 2026
CVE-2026-33511 (opens in a new tab)How to fix?
Upgrade pyload-ng to version 0.5.0b3.dev97 or higher.
Overview
pyload-ng is a The free and open-source Download Manager written in pure Python
Affected versions of this package are vulnerable to Authorization Bypass Through User-Controlled Key in the ClickNLoad feature. An attacker can gain unauthorized access to endpoints intended for localhost by spoofing the HTTP Host header via the local_check decorator, which enables the injection of arbitrary downloads, writing files to the storage directory, and execution of JavaScript code.