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CVE PROGRAM SOURCE RECORD5.4 Medium

CVE-2026-6045

Heap buffer overflow in EMF+ gradient brush import

Description

LibreOffice can import EMF+ graphics, which may be embedded in documents. A heap buffer overflow existed when importing an EMF+ gradient brush. The number of gradient blend points was read from the file and used to compute an allocation size, but that multiplication could overflow, so a small buffer was allocated and then filled as if it were large, writing past its end. In fixed versions the blend-point count is checked against the data actually available before allocating.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

The Document Foundation LibreOffice

Default version status: unknown

  • 25.8 to < < 25.8.7affected
  • 26.2 to < < 26.2.3affected

References