CVE-2026-44226

pyLoad: Unauthenticated traceback disclosure via global exception handler in WebUI

pyLoad is a free and open-source download manager written in Python. Prior to 0.5.0b3.dev100, pyload-ng WebUI returns full Python traceback details to clients on unhandled exceptions. Because /web/<path:filename> is reachable without authentication and renders attacker-controlled template names, an unauthenticated user can reliably trigger a server exception (for example by requesting a non-existent template) and receive internal stack traces in the HTTP response. This vulnerability is fixed in 0.5.0b3.dev100.

Affected

pyload

CVSS v3.1 GITHUB

5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS

0.41% chance of exploitation in the next 30 days, 33rd percentile

Published

2026-05-11

Proof-of-concept exploits (1)

• advisories/GHSA-c3gc-9pf2-84gg

Security advisories

• pyload/pyload/security/advisories/GHSA-c3gc-9pf2-84gg

References

• CVE Record
• NVD entry