CVE-2026-35187
Description
pyLoad is a free and open-source download manager written in Python. In 0.5.0b3.dev96 and earlier, the parse_urls API function in src/pyload/core/api/__init__.py fetches arbitrary URLs server-side via get_url(url) (pycurl) without any URL validation, protocol restriction, or IP blacklist. An authenticated user with ADD permission can make HTTP/HTTPS requests to internal network resources and cloud metadata endpoints, read local files via file:// protocol (pycurl reads the file server-side), interact with internal services via gopher:// and dict:// protocols, and enumerate file existence via error-based oracle (error 37 vs empty response).
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
pyload-ngPyPI | <= 0.5.0b3.dev96 | — |
Affected products
2Patches
Vulnerability mechanics
References
4- github.com/pyload/pyload/commit/4032e57d61d8f864e39f4dcfdb567527a50a9e1fnvdPatchWEB
- github.com/pyload/pyload/security/advisories/GHSA-2wvg-62qm-gj33nvdExploitMitigationVendor AdvisoryWEB
- github.com/advisories/GHSA-2wvg-62qm-gj33ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-35187ghsaADVISORY
News mentions
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