CVE-2026-6040
Heap use-after-free in ODF number-format blank-width parsing
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
A heap use-after-free existed when importing the blank-width characters of an ODF number format. A position value read from the document was not checked against the length of the format-code string, so a malformed number format could be processed against memory outside that string. In fixed versions the position is bounds-checked before use.
| CWE | CWE-416 CWE-787 |
| Vendor | the document foundation |
| Product | libreoffice |
| Published | Jun 15, 2026 |
| Last Updated | Jun 15, 2026 |
Stay Ahead of the Next One
Get instant alerts for the document foundation libreoffice
Be the first to know when new unknown vulnerabilities affecting the document foundation libreoffice are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
Affected Versions
The Document Foundation / LibreOffice
25.8 < < 25.8.7 26.2 < < 26.2.3
References
Credits
Anthropic (automated discovery using Claude) Trail of Bits (triage and validation)