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-2020-6452 Vulnerability in npm package electron
CVE-2022-31172 Vulnerability in npm package @openzeppelin/contracts-upgradeable