{"api_version":"1","generated_at":"2026-10-07T23:05:12+00:00","cve":"CVE-2026-107225","urls":{"html":"https://cve.report/CVE-2026-107225","api":"https://cve.report/api/cve/CVE-2026-107225.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-107225","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-107225"},"summary":{"title":"Excelize: GetStyle panics on a negative fillId, borderId or fontId in styles.xml","description":"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.","state":"PUBLISHED","assigner":"GitHub_M","published_at":"2026-10-07 19:17:35","updated_at":"2026-10-07 19:17:35"},"problem_types":["CWE-20","CWE-129","CWE-20 CWE-20: Improper Input Validation","CWE-129 CWE-129: Improper Validation of Array Index"],"metrics":[{"version":"3.1","source":"security-advisories@github.com","type":"Secondary","score":"6.5","severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","data":{"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"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"6.5","severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","data":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","version":"3.1"}}],"references":[{"url":"https://github.com/qax-os/excelize/security/advisories/GHSA-5h23-36rv-pm65","name":"https://github.com/qax-os/excelize/security/advisories/GHSA-5h23-36rv-pm65","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/qax-os/excelize/commit/ae2113b410e51f6a141c396a59eda8c42b91bc22","name":"https://github.com/qax-os/excelize/commit/ae2113b410e51f6a141c396a59eda8c42b91bc22","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/qax-os/excelize/pull/2367","name":"https://github.com/qax-os/excelize/pull/2367","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-107225","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-107225","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"qax-os","product":"excelize","version":"affected >= 2.8.0, <= 2.11.0","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"product":"excelize","vendor":"qax-os","versions":[{"status":"affected","version":">= 2.8.0, <= 2.11.0"}]}],"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."}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-20","description":"CWE-20: Improper Input Validation","lang":"en","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-129","description":"CWE-129: Improper Validation of Array Index","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-10-07T18:55:55.603Z","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M"},"references":[{"name":"https://github.com/qax-os/excelize/security/advisories/GHSA-5h23-36rv-pm65","tags":["x_refsource_CONFIRM"],"url":"https://github.com/qax-os/excelize/security/advisories/GHSA-5h23-36rv-pm65"},{"name":"https://github.com/qax-os/excelize/pull/2367","tags":["x_refsource_MISC"],"url":"https://github.com/qax-os/excelize/pull/2367"},{"name":"https://github.com/qax-os/excelize/commit/ae2113b410e51f6a141c396a59eda8c42b91bc22","tags":["x_refsource_MISC"],"url":"https://github.com/qax-os/excelize/commit/ae2113b410e51f6a141c396a59eda8c42b91bc22"}],"source":{"advisory":"GHSA-5h23-36rv-pm65","discovery":"UNKNOWN"},"title":"Excelize: GetStyle panics on a negative fillId, borderId or fontId in styles.xml"}},"cveMetadata":{"assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","assignerShortName":"GitHub_M","cveId":"CVE-2026-107225","datePublished":"2026-10-07T18:55:55.603Z","dateReserved":"2026-10-07T14:34:14.816Z","dateUpdated":"2026-10-07T18:55:55.603Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-07 19:17:35","lastModifiedDate":"2026-10-07 19:17:35","problem_types":["CWE-20","CWE-129","CWE-20 CWE-20: Improper Input Validation","CWE-129 CWE-129: Improper Validation of Array Index"],"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}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"107225","Ordinal":"1","Title":"Excelize: GetStyle panics on a negative fillId, borderId or font","CVE":"CVE-2026-107225","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"107225","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"Excelize: GetStyle panics on a negative fillId, borderId or font"}]}}}