๐Ÿ” CVE Alert

CVE-2026-35459

CRITICAL 9.1

pyLoad has SSRF fix bypass via HTTP redirect

CVSS Score
9.1
EPSS Score
0.0%
EPSS Percentile
11th

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.

CWE CWE-918
Vendor pyload
Product pyload
Published Apr 6, 2026
Last Updated Apr 7, 2026
Stay Ahead of the Next One

Get instant alerts for pyload pyload

Be the first to know when new critical vulnerabilities affecting pyload pyload are published โ€” delivered to Slack, Telegram or Discord.

Get Free Alerts โ†’ Free ยท No credit card ยท 60 sec setup

Affected Versions

pyload / pyload
<= 0.5.0b3.dev96

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
github.com: https://github.com/pyload/pyload/security/advisories/GHSA-7gvf-3w72-p2pg github.com: https://github.com/pyload/pyload/commit/33c55da084320430edfd941b60e3da0eb1be9443