{"id":"CVE-2018-7158","title":"The `'path'` module in the Node.js 4.x release line contains a potential regular expression denial of service (ReDoS) vector","summary":"The `'path'` module in the Node.js 4.x release line contains a potential regular expression denial of service (ReDoS) vector. The code in question was replaced in Node.js 6.x and later so this vulnerability only impacts all versions of N…","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-185","CWE-400"],"vendor":"nodejs","product":"node.js","affected":["node.js >= 4.0.0, <= 4.1.2","node.js >= 4.2.0, <= 4.9.1"],"published":"2018-05-17","updated":"2026-10-08","sourceUpdated":"2026-10-08T22:16:47.333","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2018-7158","references":[{"url":"https://nodejs.org/en/blog/vulnerability/march-2018-security-releases/","label":"cve-request@iojs.org"},{"url":"https://nodejs.org/en/blog/vulnerability/march-2018-security-releases/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2018/cve-2018-7158.json"},{"url":"https://access.redhat.com/security/cve/CVE-2018-7158"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1561980"},{"url":"https://www.cve.org/CVERecord?id=CVE-2018-7158"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-7158"}],"tags":["nvd","csaf","vex","red-hat"],"epss":0.03409,"epssPercentile":0.88542,"ingestedAt":"2026-10-08T23:16:47.289Z","scores":{"nvd":7.5,"vendor":5.9},"slug":"CVE-2018-7158","body":"## Overview\n\nThe `'path'` module in the Node.js 4.x release line contains a potential regular expression denial of service (ReDoS) vector. The code in question was replaced in Node.js 6.x and later so this vulnerability only impacts all versions of Node.js 4.x. The regular expression, `splitPathRe`, used within the `'path'` module for the various path parsing functions, including `path.dirname()`, `path.extname()` and `path.parse()` was structured in such a way as to allow an attacker to craft a string, that when passed through one of these functions, could take a significant amount of time to evaluate, potentially leading to a full denial of service.\n\n## Affected\n\n- `node.js >= 4.0.0, <= 4.1.2`\n- `node.js >= 4.2.0, <= 4.9.1`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · affected: Red Hat Software Collections · no fix planned: Red Hat Software Collections · updated 2026-10-09 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2018/cve-2018-7158.json)","depth":"twilight","depthScore":42,"depthScoreParts":{"impact":41.3,"likelihood":0.7,"exploitation":0,"ransomware":0},"changes":[]}