{"cve":"CVE-2018-21270","nvd":{"published":"2020-12-03T21:15:11.100","modified":"2026-06-17T01:54:30.263","status":"Modified","description":"Versions less than 0.0.6 of the Node.js stringstream module are vulnerable to an out-of-bounds read because of allocation of uninitialized buffers when a number is passed in the input stream (when using Node.js 4.x).","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H","score":6.5},"cwes":["CWE-125"],"references":["https://github.com/mhart/StringStream/issues/7","https://hackerone.com/reports/321670","https://www.npmjs.com/advisories/664","https://github.com/mhart/StringStream/issues/7","https://hackerone.com/reports/321670"],"products":["nodejs:node.js"],"source":"nvd","synced_at":"2026-10-19T21:11:20.317016139+00:00"},"epss":{"cve":"CVE-2018-21270","score":0.03682,"percentile":0.89685,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-mf6x-7mm4-x2g7","url":"https://osv.dev/vulnerability/GHSA-mf6x-7mm4-x2g7","summary":"Out-of-bounds Read in stringstream","modified":"2023-11-08T04:00:14.605779Z","packages":[{"ecosystem":"npm","name":"stringstream","purl":"pkg:npm/stringstream","ranges":["<0.0.6"],"fixed":["0.0.6"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}