CVE-2026-35459 Details
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.
A server-side request forgery (SSRF) vulnerability has been identified in pyLoad versions through 0.5.0b3. The issue arises because the application follows HTTP redirects to internal addresses without validating them against an SSRF filter. This vulnerability allows an authenticated user with ADD permission to access internal network services or cloud metadata endpoints, potentially leading to unauthorized data exposure.
Users are advised to update to pyLoad version 0.5.0b3.dev97, where this vulnerability has been patched.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Apr 7, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/pyload/pyload/commit/33c55da084320430edfd941b60e3da0eb1be9443 | [email protected] | Patch |
| https://github.com/pyload/pyload/security/advisories/GHSA-7gvf-3w72-p2pg | [email protected] | ExploitMitigationVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-918 | Server-Side Request Forgery (SSRF) | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| pyload-ng project pyload-ng | < 0.5.0b3.dev97 |
CPE
Remediation
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Change History
6 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 24, 2026 | CVE Translated | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 20, 2026 | Initial Analysis | [email protected] |
| Apr 7, 2026 | CVE Modified | CISA-ADP |
| Apr 6, 2026 | New CVE Received | [email protected] |