{"id":"CVE-2026-107223","revision":"4a1f642647da43fb88d5ee8fc2b04697","records":[{"revision":"4a1f642647da43fb88d5ee8fc2b04697","observedAt":"2026-10-25T04:17:41.466+00:00","statement":{"source":"nvd","id":"CVE-2026-107223","aliases":[],"title":"Excelize is a Go language library for reading and writing Microsoft Excel spreadsheets. From 2.1.0 to 2.11.0, flatCols expands file-loaded column ranges without validating Min and Max against the worksheet column limit. SetColWidth reaches …","description":"Excelize is a Go language library for reading and writing Microsoft Excel spreadsheets. From 2.1.0 to 2.11.0, flatCols expands file-loaded column ranges without validating Min and Max against the worksheet column limit. SetColWidth reaches flatCols, which expands xlsxCol.Min through xlsxCol.Max without enforcing MaxColumns. When a crafted worksheet supplies an oversized col max attribute and the application invokes a column mutator, flatCols performs a deep copy and append for every attacker-selected column number, allowing an attacker to consume excessive CPU and memory or trigger OOM. No fixed version is available as of this review.","state":0,"publishedAt":"2026-10-07T19:17:34.97+00:00","modifiedAt":"2026-10-13T14:18:46.643+00:00","affected":[],"metrics":[{"system":"CVSS 4.0 · security-advisories@github.com · Secondary","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","score":7.1,"severity":"HIGH"},{"system":"CVSS 3.1 · nvd@nist.gov · Primary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://github.com/qax-os/excelize/commit/a54c578af309fa81f448143ed2b7a91192cc58a7","https://github.com/qax-os/excelize/pull/2370","https://github.com/qax-os/excelize/security/advisories/GHSA-fq3v-74gv-27gm"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-107223","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Analyzed","weaknesses":["CWE-789"],"productCriteria":["cpe:2.3:a:excelize:excelize:*:*:*:*:*:go:*:*"],"sourceDates":{"published":"2026-10-07T19:17:34.970","lastModified":"2026-10-13T14:18:46.643"},"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-2026-107223","identifiers":["CVE-2026-107223"]},"retained":false,"historicalAffected":[]}],"coverage":[]}