CVE-2026-35459

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 v3 9.1 CRITICAL

9.1^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/pyload/pyload/commit/33c55da084320430edfd941b60e3da0eb1be9443	Patch
https://github.com/pyload/pyload/security/advisories/GHSA-7gvf-3w72-p2pg	Exploit Mitigation Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:pyload-ng_project:pyload-ng:*:*:*:*:*:python:*:*

History

20 Apr 2026, 17:01

Type	Values Removed	Values Added
References	~~() https://github.com/pyload/pyload/commit/33c55da084320430edfd941b60e3da0eb1be9443 -~~	() https://github.com/pyload/pyload/commit/33c55da084320430edfd941b60e3da0eb1be9443 - Patch
References	~~() https://github.com/pyload/pyload/security/advisories/GHSA-7gvf-3w72-p2pg -~~	() https://github.com/pyload/pyload/security/advisories/GHSA-7gvf-3w72-p2pg - Exploit, Mitigation, Vendor Advisory
First Time		Pyload-ng Project Pyload-ng Project pyload-ng
CPE		cpe:2.3:a:pyload-ng_project:pyload-ng::::::python::*

07 Apr 2026, 20:16

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 9.1

06 Apr 2026, 20:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-06 20:16

Updated : 2026-04-20 17:01

NVD link : CVE-2026-35459

Mitre link : CVE-2026-35459

CVE.ORG link : CVE-2026-35459

JSON object : View

Products Affected

pyload-ng_project

pyload-ng

CWE

CWE-918

Server-Side Request Forgery (SSRF)

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