{"id":"CVE-2016-10539","details":"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.","aliases":["GHSA-7mc5-chhp-fmc3"],"modified":"2026-03-14T09:18:18.831735Z","published":"2018-05-31T20:29:01.407Z","references":[{"type":"ADVISORY","url":"https://nodesecurity.io/advisories/106"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/jshttp/negotiator","events":[{"introduced":"0"},{"last_affected":"d904ca6a639487b4e27c009e33183570aae4e789"}],"database_specific":{"versions":[{"introduced":"0"},{"last_affected":"0.6.0"}]}}],"versions":["0.3.0","0.4.3","0.4.6","0.4.7","0.4.8","0.4.9","0.5.0","0.5.1","0.5.2","0.5.3","0.6.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-10539.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}