Description
The qs module before 1.0.0 does not have an option or default for specifying object depth and when parsing a string representing a deeply nested object will block the event loop for long periods of time. An attacker could leverage this to cause a temporary denial-of-service condition, for example, in a web application, other requests would not be processed while this blocking is occurring.
Remediation
References
https://nodesecurity.io/advisories/28
Related Vulnerabilities
CVE-2020-2250 Vulnerability in maven package org.jenkins-ci.plugins:soapui-pro-functional-testing
CVE-2018-6561 Vulnerability in maven package org.webjars.bowergithub.dojo:dijit
CVE-2018-8811 Vulnerability in maven package org.opencms:opencms-core