{"id":"CVE-2026-3665","summary":"xlnt-community xlnt XLSX File xlsx_consumer.cpp read_office_document null pointer dereference","details":"A vulnerability was identified in xlnt-community xlnt up to 1.6.1. The affected element is the function xlnt::detail::xlsx_consumer::read_office_document of the file source/detail/serialization/xlsx_consumer.cpp of the component XLSX File Parser. The manipulation leads to null pointer dereference. The attack must be carried out locally. The exploit is publicly available and might be used.","modified":"2026-08-12T03:51:27.517838205Z","published":"2026-03-07T15:32:08.520Z","database_specific":{"cna_assigner":"VulDB","cwe_ids":["CWE-404","CWE-476"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/3xxx/CVE-2026-3665.json"},"references":[{"type":"WEB","url":"https://github.com/xlnt-community/xlnt/"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/3xxx/CVE-2026-3665.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-3665"},{"type":"ADVISORY","url":"https://vuldb.com/?id.349554"},{"type":"ADVISORY","url":"https://vuldb.com/?submit.764647"},{"type":"REPORT","url":"https://github.com/xlnt-community/xlnt/issues/140"},{"type":"REPORT","url":"https://vuldb.com/?ctiid.349554"},{"type":"EVIDENCE","url":"https://github.com/oneafter/0128/blob/main/xl4/repro"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/xlnt-community/xlnt","events":[{"introduced":"8b28e662cbd9e6c2ff3e020a8a163564cbc48e42"},{"last_affected":"3b25b084eab473bb6009b8e3d03ba5ff10bb4891"}],"database_specific":{"cpe":"cpe:2.3:a:xlnt-community:xlnt:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"1.6.0"},{"last_affected":"1.6.0"},{"introduced":"1.6.1"},{"last_affected":"1.6.1"},{"introduced":"0"}],"source":["AFFECTED_FIELD","CPE_RANGE"]}}],"versions":["1.6.0","1.6.1","v1.6.1","v1.6.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-3665.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P"}]}