CVE-2026-40594 — Race Condition
CVE-2026-40594 — pyLoad is a free and open-source download manager written in Python. Prior to 0.5.0b3.dev98, the set_session_cookie_secure before_request handler in src/pyload/webui/app/__init__.py reads the X-Forwarded-Proto header from any HTTP request without validating that the request originat
What This Means For You
- If your environment is affected by CWE-346, review your exposure and prioritize patching based on your environment. Monitor vendor advisories for CVE-2026-40594 updates and patches.
Related ATT&CK Techniques
🛡️ Detection Rules
3 rules · 6 SIEM formats3 detection rules auto-generated for this incident, mapped to MITRE ATT&CK. Sigma YAML is free — export to any SIEM format via the Intel Bot.
CVE-2026-40594 - PyLoad Session Cookie Manipulation via X-Forwarded-Proto
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-40594 | vulnerability | CVE-2026-40594 |
| CWE-346 | weakness | CWE-346 |
Written by SCW Vulnerability Desk
Source & Attribution
| Source Platform | NVD |
| Channel | National Vulnerability Database |
| Published | April 21, 2026 at 21:16 UTC |
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