{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-56876", "assignerOrgId": "9119a7d8-5eab-497f-8521-727c672e3725", "state": "PUBLISHED", "assignerShortName": "cisa-cg", "dateReserved": "2026-06-23T15:30:16.784Z", "datePublished": "2026-06-26T16:44:29.768Z", "dateUpdated": "2026-06-26T16:44:29.768Z"}, "containers": {"cna": {"descriptions": [{"lang": "en", "value": "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."}], "affected": [{"vendor": "max-mapper", "product": "extract-zip", "defaultStatus": "affected", "versions": [{"version": "0", "status": "affected", "lessThan": "*", "versionType": "custom"}]}], "tags": ["unsupported-when-assigned"], "problemTypes": [{"descriptions": [{"description": "CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')", "lang": "en", "type": "CWE", "cweId": "CWE-22"}]}, {"descriptions": [{"description": "CWE-61 UNIX Symbolic Link (Symlink) Following", "lang": "en", "type": "CWE", "cweId": "CWE-61"}]}], "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.1, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, {"cvssV4_0": {"version": "4.0", "baseScore": 8.6, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "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", "userInteraction": "PASSIVE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-06-23T15:08:40.844368Z", "id": "CVE-2026-56876", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "extract-zip unvalidated symlink path traversal", "references": [{"name": "url", "url": "https://github.com/ziad626/extract-zip-security-research/security/advisories/GHSA-x7jf-2287-qcpf", "tags": ["third-party-advisory"]}, {"name": "url", "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-177-01.json", "tags": ["third-party-advisory"]}, {"name": "url", "url": "https://www.cve.org/CVERecord?id=CVE-2026-56876", "tags": ["vdb-entry"]}], "credits": [{"value": "Ziad Salah, Independent", "lang": "en"}], "datePublic": "2026-06-15T00:00:00.000Z", "providerMetadata": {"orgId": "9119a7d8-5eab-497f-8521-727c672e3725", "shortName": "cisa-cg", "dateUpdated": "2026-06-26T16:44:29.768Z"}}}}

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