{"id":"CVE-2026-56876","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-56876","generatedAt":"2026-10-28T09:26:59.378Z","title":"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.","description":"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":"2026-06-26T18:17:03.000Z","lastModified":"2026-10-25T17:10:00.000Z","status":"Analyzed","sourceIdentifier":"9119a7d8-5eab-497f-8521-727c672e3725","cvss":{"version":"4.0","score":8.6,"severity":"HIGH","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-22","CWE-61"],"affected":["max-mapper/extract-zip"],"epss":{"score":0.00526,"percentile":0.44354,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.53%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/ziad626/extract-zip-security-research/security/advisories/GHSA-x7jf-2287-qcpf","tags":["Exploit","Third Party Advisory"],"source":"9119a7d8-5eab-497f-8521-727c672e3725"},{"url":"https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-177-01.json","tags":["Third Party Advisory"],"source":"9119a7d8-5eab-497f-8521-727c672e3725"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-56876","tags":["Third Party Advisory"],"source":"9119a7d8-5eab-497f-8521-727c672e3725"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-56876","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}