CVE-2026-63277

UNKNOWN 0.0

RCE via calcext:data-mappings, sql provider and jdbc connector

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-829
Vendor	the document foundation
Product	libreoffice
Published	Oct 5, 2026
Last Updated	Oct 5, 2026

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Affected Versions

The Document Foundation / LibreOffice

26.2 < < 26.2.5

References

NVD ↗ CVE.org ↗ EPSS Data ↗

libreoffice.org: https://www.libreoffice.org/about-us/security/advisories/cve-2026-63277

Credits

🔍 Rick de Jager of the V12 security team 🔍 Thomas Rinsma and Edoardo Geraci from Codean Labs Caolán McNamara of Collabora Productivity