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5.4 Medium

CVE-2026-6045 LibreOffice can import EMF+ graphics, which may be embedded in documents

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 and versions

Product Affected versions Fixed in
LibreOffice 26.2 26.2 → latest No fix stated
LibreOffice 25.8 25.8 → latest No fix stated

References

Timeline

  1. Published
  2. Last modified

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