CVE-2026-46561: pyload-ng: SSRF via HTTP Redirect Bypass in parse_urls API

May 21, 2026 (updated June 9, 2026)

The SSRF mitigation added in commit 33c55da for GHSA-7gvf-3w72-p2pg is incomplete. The PREREQFUNCTION-based private IP check was correctly applied to HTTPChunk (download path) but not to HTTPRequest (used by the parse_urls API). An authenticated attacker can supply a URL pointing to an attacker-controlled server that responds with a 302 redirect to an internal/private IP address, bypassing the is_global_host() check on the initial URL.

References

github.com/advisories/GHSA-8rp3-xc6w-5qp5
github.com/pyload/pyload/security/advisories/GHSA-8rp3-xc6w-5qp5
nvd.nist.gov/vuln/detail/CVE-2026-46561

Code Behaviors & Features

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