CVE-2026-40071: pyload-ng has a WebUI JSON permission mismatch that lets ADD/DELETE users invoke MODIFY-only actions

April 8, 2026 (updated April 13, 2026)

Several WebUI JSON endpoints enforce weaker permissions than the core API methods they invoke. This allows authenticated low-privileged users to execute MODIFY operations that should be denied by pyLoad’s own permission model.

Confirmed mismatches:

ADD user can reorder packages/files (order_package, order_file) via /json/package_order and /json/link_order
DELETE user can abort downloads (stop_downloads) via /json/abort_link

References

github.com/advisories/GHSA-rfgh-63mg-8pwm
github.com/pyload/pyload
github.com/pyload/pyload/security/advisories/GHSA-rfgh-63mg-8pwm
nvd.nist.gov/vuln/detail/CVE-2026-40071

Code Behaviors & Features

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