{ "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" } } ] } }