{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-8357", "assignerOrgId": "4fe7d05b-1353-44cc-8b7a-1e416936dff2", "state": "PUBLISHED", "assignerShortName": "Document Fdn.", "dateReserved": "2026-05-11T18:55:27.138Z", "datePublished": "2026-06-15T16:23:37.518Z", "dateUpdated": "2026-07-09T12:09:47.004Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "4fe7d05b-1353-44cc-8b7a-1e416936dff2", "shortName": "Document Fdn.", "dateUpdated": "2026-06-15T16:23:37.518Z" }, "title": "Heap buffer overflow in Calc formula compilation", "datePublic": "2026-06-15T00:00:00.000Z", "problemTypes": [ { "descriptions": [ { "lang": "en", "cweId": "CWE-787", "description": "CWE-787 Out-of-bounds Write", "type": "CWE" } ] }, { "descriptions": [ { "lang": "en", "cweId": "CWE-193", "description": "CWE-193 Off-by-one Error", "type": "CWE" } ] } ], "impacts": [ { "capecId": "CAPEC-44", "descriptions": [ { "lang": "en", "value": "CAPEC-44 Overflow Binary Resource File" } ] } ], "affected": [ { "vendor": "The Document Foundation", "product": "LibreOffice", "versions": [ { "status": "affected", "version": "26.2", "lessThan": "< 26.2.4", "versionType": "26.2 series" } ], "defaultStatus": "unknown" } ], "descriptions": [ { "lang": "en", "value": "LibreOffice Calc compiles cell formulas when opening a spreadsheet. A heap buffer overflow existed when compiling a very long formula made up of many opening tokens. The array that tracks nesting depth was allocated one element too small for that worst case, so such a formula wrote one element past its end. In fixed versions the array is sized to hold the largest possible nesting.", "supportingMedia": [ { "type": "text/html", "base64": false, "value": "

LibreOffice Calc compiles cell formulas when opening a spreadsheet. A heap buffer overflow existed when compiling a very long formula made up of many opening tokens. The array that tracks nesting depth was allocated one element too small for that worst case, so such a formula wrote one element past its end. In fixed versions the array is sized to hold the largest possible nesting.

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An application crash may occur if a user opens a malicious spreadsheet that contains excessively long formulas. Successful exploitation of this vulnerability could result in a denial of service or potentially lead to arbitrary code execution." } ], "metrics": [ { "other": { "content": { "namespace": "https://access.redhat.com/security/updates/classification/", "value": "Important" }, "type": "Red Hat severity rating" } }, { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1" }, "format": "CVSS" } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-131", "description": "Incorrect Calculation of Buffer Size", "lang": "en", "type": "CWE" } ] } ], "references": [ { "tags": [ "vdb-entry", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/security/cve/CVE-2026-8357" }, { "name": "RHBZ#2488964", "tags": [ "issue-tracking", "x_refsource_REDHAT" ], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2488964" }, { "tags": [ "x_sadp-csaf-vex" ], "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-8357.json" }, { "tags": [ "vendor-advisory", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/errata/RHSA-2026:35839" }, { "tags": [ "vendor-advisory", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/errata/RHSA-2026:36832" } ], "solutions": [ { "lang": "en", "value": "RHSA-2026:35839: Red Hat Enterprise Linux AppStream (v. 8), Red Hat Enterprise Linux CRB (v. 8)" }, { "lang": "en", "value": "RHSA-2026:36832: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)" } ], "timeline": [ { "lang": "en", "time": "2026-06-15T18:01:23.824Z", "value": "Reported to Red Hat." }, { "lang": "en", "time": "2026-06-15T16:23:37.518Z", "value": "Made public." } ], "title": "libreoffice: LibreOffice Calc: Arbitrary code execution via heap buffer overflow in formula compilation", "workarounds": [ { "lang": "en", "value": "Users should exercise caution when opening untrusted or suspicious spreadsheet documents." } ], "x_adpType": "supplier", "x_generator": { "engine": "sadp-cli 1.0.0" }, "providerMetadata": { "orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "shortName": "redhat-SADP", "dateUpdated": "2026-07-09T12:09:47.004Z" } } ] } }