{"cve":"CVE-2026-114104","nvd":{"published":"2026-10-21T01:17:36.220","modified":"2026-10-21T01:17:36.333","status":"Deferred","description":"adm-zip before 0.6.1 contains an inconsistent entry resolution vulnerability that allows attackers to bypass content validation by supplying ZIP archives with duplicate entry names. Attackers can craft archives where getEntry() returns the last duplicate while extractAllTo() writes the first, causing unvalidated bytes to be written to disk.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","score":8.2},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N","score":5.9},"cwes":["CWE-436"],"references":["https://github.com/cthackers/adm-zip/security/advisories/GHSA-p634-w6r4-rjp2","https://www.vulncheck.com/advisories/adm-zip-before-0.6.1-duplicate-zip-entry-name-validation-bypass"],"products":[],"source":"nvd","synced_at":"2026-10-21T03:58:25.040806189+00:00"},"epss":{"cve":"CVE-2026-114104","score":0.00232,"percentile":0.13937,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-p634-w6r4-rjp2","url":"https://osv.dev/vulnerability/GHSA-p634-w6r4-rjp2","summary":"adm-zip: Duplicate ZIP entry names: getEntry() and extractAllTo() resolve to different content","modified":"2026-10-21T10:57:22.783519393Z","packages":[{"ecosystem":"npm","name":"adm-zip","purl":"pkg:npm/adm-zip","ranges":["<0.6.1"],"fixed":["0.6.1"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}