Two high-severity vulnerabilities were disclosed in the open-source download manager pyLoad, both affecting versions prior to 0.5.0b3.dev97. CVE-2026-33511 allows an unauthenticated remote attacker to bypass ClickNLoad's localhost-only protection by spoofing the HTTP Host header, exposing restricted endpoints. The bypass can be used to inject arbitrary downloads, write files into pyLoad's storage directory, and execute JavaScript code.
A second flaw, CVE-2026-32808, enables arbitrary file deletion through path traversal during password verification of certain encrypted 7z archives with non-encrypted headers. pyLoad derives an archive entry name from 7z listing output and uses it as a filesystem path without confining it to the extraction directory, allowing deletion outside the intended path. Both issues were fixed in pyLoad 0.5.0b3.dev97, with the file-deletion bug tracked as CWE-22 and the ClickNLoad issue exposing a network-reachable authentication bypass.

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A second vulnerability, CVE-2026-33511, was disclosed affecting pyLoad versions 0.4.20 through versions before 0.5.0b3.dev97. The issue allows authentication bypass through Host header injection in ClickNLoad, exposing localhost-restricted endpoints and enabling arbitrary download injection, file writes, and JavaScript execution.
A vulnerability tracked as CVE-2026-32808 was disclosed for pyLoad versions before 0.5.0b3.dev97. The flaw stems from unsafe handling of archive entry names from 7z listing output, enabling arbitrary file deletion via path traversal.
pyLoad released version 0.5.0b3.dev97, which fixed a path traversal issue in encrypted 7z password verification that could allow arbitrary file deletion outside the intended extraction directory.
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