{"id":"CVE-2020-26245","aliases":["GHSA-4v2w-h9jm-mqjg"],"url":"https://o3.security/vulnerability/CVE-2020-26245","summary":"Prototype Pollution in systeminformation","details":"### Impact\ncommand injection vulnerability by prototype pollution\n\n### Patches\nProblem was fixed with a rewrite of shell sanitations to avoid prototyper pollution problems. Please upgrade to version >= 4.30.2\n\n### Workarounds\nIf you cannot upgrade, be sure to check or sanitize service parameter strings that are passed to si.inetChecksite()\n\n### For more information\nIf you have any questions or comments about this advisory:\n\n* Open an issue in [systeminformation](https://github.com/sebhildebrandt/systeminformation/issues/new?template=bug_report.md)","published":"2020-11-27T20:15:10.963Z","modified":"2026-08-07T15:11:07.215117Z","cvss":{"score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"npm","name":"systeminformation","fixedVersion":"4.30.5"}],"fix":{"url":"https://github.com/sebhildebrandt/systeminformation/commit/8113ff0e87b2f422a5756c48f1057575e73af016","label":"sebhildebrandt/systeminformation@8113ff0"},"references":[{"type":"ADVISORY","url":"https://github.com/sebhildebrandt/systeminformation/security/advisories/GHSA-4v2w-h9jm-mqjg"},{"type":"FIX","url":"https://github.com/sebhildebrandt/systeminformation/commit/8113ff0e87b2f422a5756c48f1057575e73af016"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-26245"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T15:11:07.215117Z"}}