Heap buffer overflow in Calc formula compilation_CVE-2026-8357

5.4 / 10

MEDIUM

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:P

Description

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.

Basic Information

ID CVE-2026-8357

Source Document Fdn.

Published Jun 15, 2026 at 16:23

Affected Product

Vendor The Document Foundation

Product LibreOffice

Version 26.2

Affected Versions The Document Foundation LibreOffice 26.2

CWE Classification

CWE-787 CWE-193

References

www.libreoffice.org /about-us/security/advisories/cve-2026-8357

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    "published": "2026-06-15T16:23:37.518Z",
    "modified": "2026-06-15T16:23:37.518Z",
    "type": "cve",
    "title": "Heap buffer overflow in Calc formula compilation",
    "source": "Document Fdn.",
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