{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-107224","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-10-07T14:34:14.816Z","datePublished":"2026-10-07T18:53:27.282Z","dateUpdated":"2026-10-07T19:30:13.733Z"},"containers":{"cna":{"title":"Excelize: A Zip64 uncompressed-size of 2^63 panics OpenFile/OpenReader","problemTypes":[{"descriptions":[{"cweId":"CWE-190","lang":"en","description":"CWE-190: Integer Overflow or Wraparound","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-681","lang":"en","description":"CWE-681: Incorrect Conversion between Numeric Types","type":"CWE"}]}],"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"}}],"references":[{"name":"https://github.com/qax-os/excelize/security/advisories/GHSA-fw94-4wwp-w8pw","tags":["x_refsource_CONFIRM"],"url":"https://github.com/qax-os/excelize/security/advisories/GHSA-fw94-4wwp-w8pw"},{"name":"https://github.com/qax-os/excelize/pull/2369","tags":["x_refsource_MISC"],"url":"https://github.com/qax-os/excelize/pull/2369"},{"name":"https://github.com/qax-os/excelize/commit/db93f8d89de71589069a54d1b998af02e3c5f7cd","tags":["x_refsource_MISC"],"url":"https://github.com/qax-os/excelize/commit/db93f8d89de71589069a54d1b998af02e3c5f7cd"}],"affected":[{"vendor":"qax-os","product":"excelize","versions":[{"version":">= 2.1.0, <= 2.11.0","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-10-07T18:53:27.282Z"},"descriptions":[{"lang":"en","value":"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."}],"source":{"advisory":"GHSA-fw94-4wwp-w8pw","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/qax-os/excelize/security/advisories/GHSA-fw94-4wwp-w8pw","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-07T19:29:38.692124Z","id":"CVE-2026-107224","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-10-07T19:30:13.733Z"}}]}}