{"id":"CVE-2026-56876","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-56876","summary":"extract-zip unvalidated symlink path traversal","details":"extract-zip does not validate symlink targets when extracting zip archives. When processing a malicious zip file containing a symlink with a relative path like '../../../../etc/passwd', extract-zip will extract the symlink without validation, allowing it to point outside the extraction directory. Depending on how extract-zip is used, an attacker could read or write to arbitrary files.","published":"2026-06-26T18:34:00Z","modified":"2026-08-12T19:30:12.195969355Z","cvss":{"score":8.1,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"extract-zip","fixedVersion":null}],"fix":null,"references":[{"type":"WEB","url":"https://github.com/ziad626/extract-zip-security-research/security/advisories/GHSA-x7jf-2287-qcpf"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-56876"},{"type":"PACKAGE","url":"https://github.com/max-mapper/extract-zip"},{"type":"WEB","url":"https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-177-01.json"},{"type":"WEB","url":"https://www.cve.org/CVERecord?id=CVE-2026-56876"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T19:30:12.195969355Z"}}