CVE-2019-13611: Python-Engineio Project Python-Engineio

High severity, CVSS 8.8. EPSS: 0.9% chance of exploitation in the next 30 days.

An issue was discovered in python-engineio through 3.8.2. There is a Cross-Site WebSocket Hijacking (CSWSH) vulnerability that allows attackers to make WebSocket connections to a server by using a victim's credentials, because the Origin header is not restricted.

Affected products

• Python-Engineio Project Python-Engineio: up to and including 3.8.2

Published 2019-07-16. Last modified 2026-06-17.