CVE-2020-36048

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.

CVSS v3.1 NVD

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

CVSS v2.0 NVD

5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P

EPSS

3.28% chance of exploitation in the next 30 days, 88th percentile

Published

2021-01-07

Updated

2024-08-04

Proof-of-concept exploits (1)

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

Security advisories

• https://blog.caller.xyz/socketio-engineio-dos
• bcaller/kill-engine-io
• socketio/engine.io/commit/734f9d1268840722c41219e69eb58318e0b2ac6b
• advisories/GHSA-j4f2-536g-r55m

References

• CVE Record
• NVD entry