{"id":"CVE-2026-107225","summary":"Excelize: GetStyle panics on a negative fillId, borderId or fontId in styles.xml","details":"Excelize is a Go language library for reading and writing Microsoft Excel spreadsheets. From 2.8.0 to 2.11.0, GetStyle's fill, border, and font extraction predicates check only upper bounds for attacker-controlled style-table indices. File.GetStyle relies on extractStyleCondFuncs predicates that allow negative FillID, BorderID, and FontID values to reach slice indexing. When a crafted styles.xml supplies a negative fillId, borderId, or fontId and the application reads the style, a negative identifier passes the upper-bound-only predicate and becomes a negative slice index, allowing an attacker to panic while reading cell styling. No fixed version is available as of this review.","aliases":["GHSA-5h23-36rv-pm65"],"modified":"2026-10-08T10:45:25.844220854Z","published":"2026-10-07T18:55:55.603Z","database_specific":{"cwe_ids":["CWE-129","CWE-20"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/107xxx/CVE-2026-107225.json","cna_assigner":"GitHub_M"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/107xxx/CVE-2026-107225.json"},{"type":"FIX","url":"https://github.com/qax-os/excelize/commit/ae2113b410e51f6a141c396a59eda8c42b91bc22"},{"type":"FIX","url":"https://github.com/qax-os/excelize/pull/2367"},{"type":"ADVISORY","url":"https://github.com/qax-os/excelize/security/advisories/GHSA-5h23-36rv-pm65"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-107225"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/qax-os/excelize","events":[{"introduced":"3b2b8ca8d6130723f494b773e462b03cfa011140"},{"last_affected":"90ff348959dd842cbf3a4fbd93a78afbe18db476"}],"database_specific":{"extracted_events":[{"introduced":"2.8.0"},{"last_affected":"2.11.0"}],"source":"AFFECTED_FIELD"}}],"versions":["v2.11.0","v2.10.1","v2.10.0","v2.9.1","v2.9.0","v2.8.1","v2.8.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-107225.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"}]}