{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-114104", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-10-20T21:47:43.313Z", "datePublished": "2026-10-21T00:37:05.291Z", "dateUpdated": "2026-10-21T00:37:05.291Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-10-21T00:37:05.291Z"}, "datePublic": "2026-09-11T00:00:00.000Z", "title": "adm-zip before 0.6.1 Duplicate ZIP Entry Name Validation Bypass", "descriptions": [{"lang": "en", "value": "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."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Interpretation Conflict", "cweId": "CWE-436", "type": "CWE"}]}], "affected": [{"vendor": "cthackers", "product": "adm-zip", "defaultStatus": "unaffected", "packageURL": "pkg:npm/adm-zip", "versions": [{"version": "0", "status": "affected", "versionType": "semver", "lessThan": "0.6.1"}, {"version": "0.6.1", "status": "unaffected", "versionType": "semver"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:adm-zip_project:adm-zip:*:*:*:*:*:*:*:*", "versionEndExcluding": "0.6.1"}]}]}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "vectorString": "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", "attackVector": "NETWORK", "attackComplexity": "HIGH", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 8.2, "baseSeverity": "HIGH"}}, {"format": "CVSS", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "availabilityImpact": "NONE", "baseScore": 5.9, "baseSeverity": "MEDIUM"}}], "references": [{"url": "https://github.com/cthackers/adm-zip/security/advisories/GHSA-p634-w6r4-rjp2", "tags": ["vendor-advisory"], "name": "GitHub Security Advisory (GHSA-p634-w6r4-rjp2)"}, {"name": "VulnCheck Advisory: adm-zip before 0.6.1 Duplicate ZIP Entry Name Validation Bypass", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/adm-zip-before-0.6.1-duplicate-zip-entry-name-validation-bypass"}], "credits": [{"lang": "en", "value": "zikk090", "type": "reporter"}], "x_generator": {"engine": "vulncheck-endgame"}}}}

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