Vulnerability 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.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Pyload-Ng Project | Pyload-Ng | < 0.5.0b3.dev97 |
Related Weaknesses (CWE)
References
- https://github.com/pyload/pyload/commit/33c55da084320430edfd941b60e3da0eb1be9443Patch
- https://github.com/pyload/pyload/security/advisories/GHSA-7gvf-3w72-p2pgExploitMitigationVendor Advisory
FAQ
What is CVE-2026-35459?
CVE-2026-35459 is a vulnerability with a CVSS score of 9.1 (CRITICAL). 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 va...
How severe is CVE-2026-35459?
CVE-2026-35459 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-35459?
Check the references section above for vendor advisories and patch information. Affected products include: Pyload-Ng Project Pyload-Ng.