{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-26064", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-02-10T18:01:31.900Z", "datePublished": "2026-02-20T01:44:34.137Z", "dateUpdated": "2026-02-20T15:34:24.625Z"}, "containers": {"cna": {"title": "calibre: Path Traversal Vulnerability Enables Arbitrary File Write and Remote Code Execution", "problemTypes": [{"descriptions": [{"cweId": "CWE-22", "lang": "en", "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "ACTIVE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "HIGH", "subAvailabilityImpact": "HIGH", "baseScore": 9.3, "baseSeverity": "CRITICAL", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H", "version": "4.0"}}], "references": [{"name": "https://github.com/kovidgoyal/calibre/security/advisories/GHSA-72ch-3hqc-pgmp", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/kovidgoyal/calibre/security/advisories/GHSA-72ch-3hqc-pgmp"}, {"name": "https://github.com/kovidgoyal/calibre/commit/e1b5f9b45a5e8fa96c136963ad9a1d35e6adac62", "tags": ["x_refsource_MISC"], "url": "https://github.com/kovidgoyal/calibre/commit/e1b5f9b45a5e8fa96c136963ad9a1d35e6adac62"}], "affected": [{"vendor": "kovidgoyal", "product": "calibre", "versions": [{"version": "< 9.3.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-02-20T01:44:34.137Z"}, "descriptions": [{"lang": "en", "value": "calibre is a cross-platform e-book manager for viewing, converting, editing, and cataloging e-books. Versions 9.2.1 and below contain a Path Traversal vulnerability that allows arbitrary file writes anywhere the user has write permissions. On Windows, this leads to Remote Code Execution by writing a payload to the Startup folder, which executes on next login. Function extract_pictures only checks startswith('Pictures'), and does not sanitize '..' sequences. calibre's own ZipFile.extractall() in utils/zipfile.py does sanitize '..' via _get_targetpath(), but extract_pictures() bypasses this by using manual zf.read() + open(). This issue has been fixed in version 9.3.0."}], "source": {"advisory": "GHSA-72ch-3hqc-pgmp", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-02-20T15:29:11.225512Z", "id": "CVE-2026-26064", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-02-20T15:34:24.625Z"}}]}}

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