Description
negotiator is an HTTP content negotiator for Node.js and is used by many modules and frameworks including Express and Koa. The header for "Accept-Language", when parsed by negotiator 0.6.0 and earlier is vulnerable to Regular Expression Denial of Service via a specially crafted string.
Remediation
References
https://nodesecurity.io/advisories/106
Related Vulnerabilities
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CVE-2020-1938 Vulnerability in maven package org.apache.tomcat:tomcat-coyote
CVE-2021-4133 Vulnerability in maven package org.keycloak:keycloak-services
CVE-2020-28249 Vulnerability in npm package joplin
CVE-2020-16041 Vulnerability in maven package org.webjars.npm:electron