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.

Remediation

References

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

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

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

Related Vulnerabilities

CVE-2021-23416 Vulnerability in npm package curly-bracket-parser

CVE-2023-31133 Vulnerability in npm package ghost

CVE-2016-6497 Vulnerability in maven package org.xbib.groovy:groovy-ldap

CVE-2020-10969 Vulnerability in maven package com.fasterxml.jackson.core:jackson-databind

CVE-2021-23450 Vulnerability in npm package dojo

Severity

High

Classification

CWE-400 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Tags

Patch Third Party Advisory Exploit