{"id":"CVE-2017-16119","title":"Fresh is a module used by the Express.js framework for HTTP response freshness testing","summary":"Fresh is a module used by the Express.js framework for HTTP response freshness testing. It is vulnerable to a regular expression denial of service when it is passed specially crafted input to parse. This causes the event loop to be block…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-400","CWE-400"],"vendor":"fresh_project","product":"fresh","affected":["fresh < 0.5.2"],"patched":["fresh 0.5.2"],"published":"2018-06-07","updated":"2026-10-08","sourceUpdated":"2026-10-08T20:17:26.467","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2017-16119","references":[{"url":"https://nodesecurity.io/advisories/526","label":"support@hackerone.com"},{"url":"https://nodesecurity.io/advisories/526","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"epss":0.01584,"epssPercentile":0.74819,"ingestedAt":"2026-10-08T21:07:56.393Z","slug":"CVE-2017-16119","body":"## Overview\n\nFresh is a module used by the Express.js framework for HTTP response freshness testing. It is vulnerable to a regular expression denial of service when it is passed specially crafted input to parse. This causes the event loop to be blocked causing a denial of service condition.\n\n## Affected\n\n- `fresh < 0.5.2`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `fresh 0.5.2`","depth":"twilight","depthScore":42,"depthScoreParts":{"impact":41.3,"likelihood":0.3,"exploitation":0,"ransomware":0},"changes":[]}