CVE-2026-44226 pyLoad: Unauthenticated traceback disclosure via global exception handler in WebUI
Unauthenticated attackers can trigger server exceptions to view internal Python stack traces, exposing sensitive application details.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-44226?
CVE-2026-44226 is a medium-severity vulnerability in pyload, published on 11 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-209
Which versions are affected by CVE-2026-44226?
3 open source packages ship an affected version, including pyload-ng. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
pyload-ng PyPI | All versions | 0.5.0b3.dev100 |
pyload-ng PyPI | All versions | 0.5.0b3.dev100 |
pyload-ng PyPI | All versions | 0.5.0b3.dev100 |
Products include Pyload Pyload.
How do I fix CVE-2026-44226?
Upgrade pyload-ng to 0.5.0b3.dev100 or later.
Is CVE-2026-44226 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-44226 exists.
Other vulnerabilities in pyload
- CVE-2023-0297 Code Injection in pyload/pyload
- CVE-2026-33992 pyLoad: Server-Side Request Forgery via Download Link Submission Enables Cloud Metadata Exfiltration
- CVE-2024-47821 pyLoad vulnerable to remote code execution by download to /.pyload/scripts using /flashgot API
- CVE-2024-32880 pyLoad allows upload to arbitrary folder lead to RCE
- CVE-2026-41133 pyLoad has Stale Session Privilege After Role/Permission Change (Privilege Revocation Bypass)
Sources
Also known as GHSA-c3gc-9pf2-84gg, PYSEC-2026-2993.