CVE-2026-63276 Affecting libreoffice-pdfimport package, versions <1:7.1.8.1-15.el9_8.3.alma.1


Severity

Recommended
high

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.19% (8th percentile)

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  • Snyk IDSNYK-ALMALINUX9-LIBREOFFICEPDFIMPORT-21000482
  • published16 Oct 2026
  • disclosed13 Oct 2026

Introduced: 13 Oct 2026

NewCVE-2026-63276  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:9 libreoffice-pdfimport to version 1:7.1.8.1-15.el9_8.3.alma.1 or higher.
This issue was patched in ALSA-2026:82013.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libreoffice-pdfimport package and not the libreoffice-pdfimport package as distributed by AlmaLinux. See How to fix? for AlmaLinux:9 relevant fixed versions and status.

LibreOffice converts CFF fonts to Type 1 when it subsets a font, which happens when a document is exported to PDF, and CFF fonts may be embedded in documents. A stack buffer overflow existed in that conversion. The converted operators were written into a fixed size buffer with no check that they still fit, so a glyph emitting many operators wrote past the end of the buffer. In fixed versions the remaining capacity is tracked and the conversion stops when it is used up.

CVSS Base Scores

version 3.1