{"id":"CVE-2026-107225","sourceIdentifier":"security-advisories@github.com","published":"2026-10-07T19:17:35.333","lastModified":"2026-10-13T13:08:51.830","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"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."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"qax-os","product":"excelize","versions":[{"version":">= 2.8.0, <= 2.11.0","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","baseScore":6.5,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":2.8,"impactScore":3.6}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-10-10T02:41:58.921948Z","id":"CVE-2026-107225","options":[{"exploitation":"poc"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-20"},{"lang":"en","value":"CWE-129"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:excelize:excelize:*:*:*:*:*:go:*:*","versionStartIncluding":"2.8.0","versionEndIncluding":"2.11.0","matchCriteriaId":"4FABD6F5-28D2-4CF0-9609-156698F346C1"}]}]}],"references":[{"url":"https://github.com/qax-os/excelize/commit/ae2113b410e51f6a141c396a59eda8c42b91bc22","source":"security-advisories@github.com","tags":["Patch"]},{"url":"https://github.com/qax-os/excelize/pull/2367","source":"security-advisories@github.com","tags":["Issue Tracking","Patch"]},{"url":"https://github.com/qax-os/excelize/security/advisories/GHSA-5h23-36rv-pm65","source":"security-advisories@github.com","tags":["Exploit","Vendor Advisory"]},{"url":"https://github.com/qax-os/excelize/security/advisories/GHSA-5h23-36rv-pm65","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","tags":["Exploit","Vendor Advisory"]}]}