{"id":"CVE-2026-107224","revision":"b8c5e52c6d624b61afb45fb6caa397a4","records":[{"revision":"b8c5e52c6d624b61afb45fb6caa397a4","observedAt":"2026-10-25T04:17:41.466+00:00","statement":{"source":"nvd","id":"CVE-2026-107224","aliases":[],"title":"Excelize is a Go language library for reading and writing Microsoft Excel spreadsheets. From 2.1.0 to 2.11.0, a Zip64 uncompressed size with the high bit set is converted from uint64 to a negative int64 before signed size-limit checks and a…","description":"Excelize is a Go language library for reading and writing Microsoft Excel spreadsheets. From 2.1.0 to 2.11.0, a Zip64 uncompressed size with the high bit set is converted from uint64 to a negative int64 before signed size-limit checks and allocation. ReadZipReader obtains UncompressedSize64 through FileInfo.Size and passes the wrapped negative value to readFile. When a crafted Zip64 entry declares an uncompressed size from 2^63 through 2^64-1 and the workbook is opened, the negative size bypasses unzip limits and reaches make as a negative capacity, allowing an attacker to panic during workbook opening. No fixed version is available as of this review.","state":0,"publishedAt":"2026-10-07T19:17:35.14+00:00","modifiedAt":"2026-10-13T14:17:32.22+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","score":6.5,"severity":"MEDIUM"}],"references":["https://github.com/qax-os/excelize/commit/db93f8d89de71589069a54d1b998af02e3c5f7cd","https://github.com/qax-os/excelize/pull/2369","https://github.com/qax-os/excelize/security/advisories/GHSA-fw94-4wwp-w8pw"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-107224","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Analyzed","weaknesses":["CWE-190","CWE-681"],"productCriteria":["cpe:2.3:a:excelize:excelize:*:*:*:*:*:go:*:*"],"sourceDates":{"published":"2026-10-07T19:17:35.140","lastModified":"2026-10-13T14:17:32.220"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-107224","identifiers":["CVE-2026-107224"]},"retained":false,"historicalAffected":[]}],"coverage":[]}