HIGH 8.1
GHSA-jmr9-qjv8-65gv
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.
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Affected packages
npm / extract-zip
Introduced in:
0 No fixed version published yet for extract-zip (npm). Pin to a known-safe version or switch to an alternative.
References
- https://github.com/ziad626/extract-zip-security-research/security/advisories/GHSA-x7jf-2287-qcpf [WEB]
- https://nvd.nist.gov/vuln/detail/CVE-2026-56876 [ADVISORY]
- https://github.com/max-mapper/extract-zip [PACKAGE]
- https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-177-01.json [WEB]
- https://www.cve.org/CVERecord?id=CVE-2026-56876 [WEB]