VYPR
Critical severity9.1NVD Advisory· Published Apr 6, 2026· Updated Apr 20, 2026

CVE-2026-35459

CVE-2026-35459

Description

pyLoad is a free and open-source download manager written in Python. In 0.5.0b3.dev96 and earlier, pyLoad has a server-side request forgery (SSRF) vulnerability. The fix for CVE-2026-33992 added IP validation to BaseDownloader.download() that checks the hostname of the initial download URL. However, pycurl is configured with FOLLOWLOCATION=1 and MAXREDIRS=10, causing it to automatically follow HTTP redirects. Redirect targets are never validated against the SSRF filter. An authenticated user with ADD permission can bypass the SSRF fix by submitting a URL that redirects to an internal address.

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Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
pyload-ngPyPI
<= 0.5.0b3.dev96

Affected products

2

Patches

Vulnerability mechanics

References

5

News mentions

0

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