Not scored yet
CVE-2026-63274
LibreOffice Draw can import PDF documents. A heap buffer overflow existed when importing a stream object. The length of the stream was taken from the object's own dictionary and was not checked against the number of bytes actually present, so copying the stream read and wrote past the end of the buffer holding it. In fixed versions the declared length is clamped to the bytes actually read.
What this means for your business
What to do
- 1Ask your IT team or provider whether any of your systems use the affected product.
- 2If you do, follow the vendor's guidance. No patch reference has been published yet.
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Scoring
- CVSS
- Not yet scored
- CVSS v4
- 5.4
- Weakness
- CWE-125
- Assigned by
- security@documentfoundation.org
Dates
- Published
- 2026-09-22
- Last modified
- 2026-09-22
- Sources
- NVD