Critical 9.3Published Apr 6, 2026

CVE-2026-35459pyLoad has SSRF fix bypass via HTTP redirect

Updated under an hour ago (Oct 26, 2026, 10:23 AM ET)

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It affects pyload and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for pyload

Exploited in the last 30 days

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: 9.3 CRITICAL (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N
Weakness (CWE): CWE-918
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Apr 7, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

pyload pyload pyload:pyload (from the name)	through 0.5.0b3.dev96	CNA record
pyload-ng_project pyload-ng pyload-ng_project:pyload-ng	before 0.5.0b3.dev97	NVD

References

https://github.com/pyload/pyload/security/advisories/GHSA-7gvf-3w72-p2pgx-refsource-confirm, exploit, mitigation, vendor-advisory
https://github.com/pyload/pyload/commit/33c55da084320430edfd941b60e3da0eb1be9443x-refsource-misc, patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.