Detections
Analytics

CVE-2020-36048

high

Description

Engine.IO before 4.0.0 allows attackers to cause a denial of service (resource consumption) via a POST request to the long polling transport.

References

https://github.com/socketio/engine.io/commit/734f9d1268840722c41219e69eb58318e0b2ac6b

https://github.com/bcaller/kill-engine-io

https://blog.caller.xyz/socketio-engineio-dos/

Details

Source: Mitre, NVD

Published: 2021-01-08

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity: High

EPSS

EPSS: 0.01413