CVE-2020-36048

7.5 highEPSS 3.3%

High (7.5) in socket engine.io. EPSS 3.3% chance of exploitation in the next 30 days. Fixed in engine.io 3.6.0.

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.

Severity

7.5 high

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

EPSS: 3.3% chance of exploitation in the next 30 days; higher than 88% of CVEs (scores of 2026-10-31)
CWE: CWE-400
Published: 2021-01-08
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Advisory	Ecosystem	Package	Affected	Fixed in
GHSA-j4f2-536g-r55m	npm	engine.io	<3.6.0	3.6.0