CVE-2026-6047 Affecting libreoffice package, versions <4:26.2.4.2-0ubuntu0.26.04.2


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.12% (3rd percentile)

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  • Snyk IDSNYK-UBUNTU2604-LIBREOFFICE-17340485
  • published14 Jul 2026
  • disclosed15 Jun 2026

Introduced: 15 Jun 2026

CVE-2026-6047  (opens in a new tab)

How to fix?

Upgrade Ubuntu:26.04 libreoffice to version 4:26.2.4.2-0ubuntu0.26.04.2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libreoffice package and not the libreoffice package as distributed by Ubuntu. See How to fix? for Ubuntu:26.04 relevant fixed versions and status.

LibreOffice can import documents in the OOXML format (DOCX). A heap buffer overflow existed when replaying deferred parser events for a text box element. A handler object was assumed to be of one type and written to at that type's field layout, but it could be a smaller object, so the write landed past the end of the allocation. In fixed versions the type is checked before the write.

CVSS Base Scores

version 3.1