{"id":"CVE-2026-31802","aliases":["GHSA-9ppj-qmqm-q256"],"url":"https://o3.security/vulnerability/CVE-2026-31802","summary":"node-tar Symlink Path Traversal via Drive-Relative Linkpath","details":"node-tar is a full-featured Tar for Node.js. Prior to version 7.5.11, tar (npm) can be tricked into creating a symlink that points outside the extraction directory by using a drive-relative symlink target such as C:../../../target.txt, which enables file overwrite outside cwd during normal tar.x() extraction. This vulnerability is fixed in 7.5.11.","published":"2026-03-09T21:11:56.668Z","modified":"2026-08-07T11:50:44.449833169Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"tar","fixedVersion":"7.5.11"}],"fix":{"url":"https://github.com/isaacs/node-tar/commit/f48b5fa3b7985ddab96dc0f2125a4ffc9911b6ad","label":"isaacs/node-tar@f48b5fa"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31802.json"},{"type":"ADVISORY","url":"https://github.com/isaacs/node-tar/security/advisories/GHSA-9ppj-qmqm-q256"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-31802"},{"type":"FIX","url":"https://github.com/isaacs/node-tar/commit/f48b5fa3b7985ddab96dc0f2125a4ffc9911b6ad"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T11:50:44.449833169Z"}}