Description
qs before 6.10.3, as used in Express before 4.17.3 and other products, allows attackers to cause a Node process hang for an Express application because an __ proto__ key can be used. In many typical Express use cases, an unauthenticated remote attacker can place the attack payload in the query string of the URL that is used to visit the application, such as a[__proto__]=b&a[__proto__]&a[length]=100000000. The fix was backported to qs 6.9.7, 6.8.3, 6.7.3, 6.6.1, 6.5.3, 6.4.1, 6.3.3, and 6.2.4 (and therefore Express 4.17.3, which has "deps: qs@6.9.7" in its release description, is not vulnerable).
Remediation
References
https://github.com/expressjs/express/releases/tag/4.17.3
https://github.com/ljharb/qs/pull/428
https://github.com/n8tz/CVE-2022-24999
https://lists.debian.org/debian-lts-announce/2023/01/msg00039.html
https://security.netapp.com/advisory/ntap-20230908-0005/
Related Vulnerabilities
CVE-2021-31403 Vulnerability in maven package com.vaadin:vaadin-server
CVE-2023-26492 Vulnerability in npm package directus
CVE-2023-45134 Vulnerability in maven package org.xwiki.platform:xwiki-platform-web-templates
CVE-2021-23507 Vulnerability in npm package object-path-set
CVE-2023-28155 Vulnerability in maven package org.webjars.npm:request