CVE-2026-63277

Published on Oct 5, 2026

LibreOffice Calc can link a cell range to an external data source, and the link is saved in the document. A document could name a Java database driver for such a link to be loaded from a remote location, so opening the document could run Java code from that location. In fixed versions an entry in a Java class path has to be a file URL.

Weakness type (CWE)CWE-829

Vulnerabilities

Crafted Spreadsheets Can Launch Remote Java Code in LibreOffice and OpenOffice

Malicious spreadsheets can execute remote Java code in LibreOffice Calc and OpenOffice via JDBC without macro warning. See affected versions and fixes.

Oct 6, 202613:37 5 min readRead

This product uses the NVD API but is not endorsed or certified by the NVD.

CVE database

CVE-2026-63277

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Crafted Spreadsheets Can Launch Remote Java Code in LibreOffice and OpenOffice

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