CVE-2026-8356
Fixed in a distro release EPSS <1%CVSS 5.4
LibreOffice can import presentations in the legacy binary PPT format. A stack buffer overflow existed when importing a colour-replacement record. Two fixed-size colour tables were filled from the file, but the write position was not reset between the two passes over the record, so a file whose combined colour counts exceeded the table size wrote past the end of the tables on the stack. In fixed versions the unused second pass is no longer read into those tables.
Products: The Document Foundation LibreOffice
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 12 | libreoffice | 4:7.4.7-1+deb12u13 |
| Debian 13 | libreoffice | 4:25.2.3-2+deb13u5 |
| Debian 14 | libreoffice | 4:26.2.4.2-1 |
| SUSE Linux Enterprise Module for Package Hub 15 SP7 | libreoffice | 26.2.5.1-150500.20.37.1 |
| SUSE Linux Enterprise Workstation Extension 15 SP7 | libreoffice | 26.2.5.1-150500.20.37.1 |
| Ubuntu 20.04 LTS | libreoffice | no fix |
| Ubuntu 22.04 LTS | libreoffice | 1:7.3.7-0ubuntu0.22.04.12 |
| Ubuntu 24.04 LTS | libreoffice | 4:24.2.7-0ubuntu0.24.04.6 |
| Ubuntu 25.10 | libreoffice | no fix |
| Ubuntu 26.04 LTS | libreoffice | 4:26.2.4.2-0ubuntu0.26.04.2 |