CVE-2026-63278 Affecting libreoffice package, versions <4:26.2.5.2-1


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.14% (3rd percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-LIBREOFFICE-20046953
  • published23 Sept 2026
  • disclosed22 Sept 2026

Introduced: 22 Sep 2026

NewCVE-2026-63278  (opens in a new tab)

How to fix?

Upgrade Debian:unstable libreoffice to version 4:26.2.5.2-1 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 Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

URLs could be constructed which expanded environment variable or INI file values, so potentially sensitive information could be exfiltrated to a remote server on opening a document containing such links. The check added for CVE-2024-12426 did not recognise every way of naming the package content provider, so a URL that named it differently still reached the expansion. In fixed versions the package content provider is matched when the URL is checked.

CVSS Base Scores

version 3.1