{"id":"CVE-2025-64118","aliases":["GHSA-29xp-372q-xqph"],"url":"https://o3.security/vulnerability/CVE-2025-64118","summary":"node-tar vulnerable to race condition leading to uninitialized memory exposure","details":"node-tar is a Tar for Node.js. In 7.5.1, using .t (aka .list) with { sync: true } to read tar entry contents returns uninitialized memory contents if tar file was changed on disk to a smaller size while being read. This vulnerability is fixed in 7.5.2.","published":"2025-10-30T17:50:20.421Z","modified":"2026-08-08T03:45:40.188425153Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"tar","fixedVersion":"7.5.2"}],"fix":{"url":"https://github.com/isaacs/node-tar/commit/5330eb04bc43014f216e5c271b40d5c00d45224d","label":"isaacs/node-tar@5330eb0"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/64xxx/CVE-2025-64118.json"},{"type":"ADVISORY","url":"https://github.com/isaacs/node-tar/security/advisories/GHSA-29xp-372q-xqph"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-64118"},{"type":"REPORT","url":"https://github.com/isaacs/node-tar/issues/445"},{"type":"FIX","url":"https://github.com/isaacs/node-tar/commit/5330eb04bc43014f216e5c271b40d5c00d45224d"},{"type":"FIX","url":"https://github.com/isaacs/node-tar/pull/446"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-08T03:45:40.188425153Z"}}