{"attribution":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","cve":{"id":"CVE-2015-8855","sourceIdentifier":"cve@mitre.org","published":"2017-01-23T21:59:00.503","lastModified":"2026-06-17T00:35:22.467","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"The semver package before 4.3.2 for Node.js allows attackers to cause a denial of service (CPU consumption) via a long version string, aka a \"regular expression denial of service (ReDoS).\""},{"lang":"es","value":"El paquete semver en versiones anteriores a 4.3.2 para Node.js permite a atacantes provocar una denegación de servicio (consumo de CPU) a través de una cadena de versión larga, vulnerabilidad también conocida como \"denegación de servicio de expresión regular (ReDoS)\"."}],"affected":[{"source":"cve@mitre.org","affectedData":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}]}],"metrics":{"cvssMetricV30":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.0","vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:N/I:N/A:C","baseScore":7.8,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"COMPLETE"},"baseSeverity":"HIGH","exploitabilityScore":10.0,"impactScore":6.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-399"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:nodejs:node.js:*:*:*:*:*:*:*:*","versionEndIncluding":"4.3.1","matchCriteriaId":"848035BC-647E-497A-B89F-53427DB791E5"}]}]}],"references":[{"url":"http://www.openwall.com/lists/oss-security/2016/04/20/11","source":"cve@mitre.org","tags":["Mailing List","Third Party Advisory"]},{"url":"http://www.securityfocus.com/bid/86957","source":"cve@mitre.org","tags":["Third Party Advisory","VDB Entry"]},{"url":"https://nodesecurity.io/advisories/31","source":"cve@mitre.org","tags":["Patch","Vendor Advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2016/04/20/11","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Mailing List","Third Party Advisory"]},{"url":"http://www.securityfocus.com/bid/86957","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory","VDB Entry"]},{"url":"https://nodesecurity.io/advisories/31","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch","Vendor Advisory"]}]}}