Heap use-after-free in ODF number-format blank-width parsing_CVE-2026-6040

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

A heap use-after-free existed when importing the blank-width characters of an ODF number format. A position value read from the document was not checked against the length of the format-code string, so a malformed number format could be processed against memory outside that string. In fixed versions the position is bounds-checked before use.

Basic Information

ID CVE-2026-6040

Source Document Fdn.

Published Jun 15, 2026 at 16:21

Affected Product

Vendor The Document Foundation

Product LibreOffice

Version 25.8

Affected Versions The Document Foundation LibreOffice 25.8
The Document Foundation LibreOffice 26.2

CWE Classification

CWE-416 CWE-787

References

www.libreoffice.org /about-us/security/advisories/cve-2026-6040

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    "published": "2026-06-15T16:21:53.903Z",
    "modified": "2026-06-15T16:21:53.903Z",
    "type": "cve",
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