LibreOffice Calc compiles cell formulas when opening a spreadsheet. A heap buffer overflow existed when compiling a very long formula made up of many opening tokens. The array that tracks nesting depth was allocated one element too small for that worst case, so such a formula wrote one element past its end. In fixed versions the array is sized to hold the largest possible nesting.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Change history 1
- First seenCVSS 5.4NVD modified 2026-10-25 23:10
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.
References 13
- https://www.libreoffice.org/about-us/security/advisories/cve-2026-8357
- https://access.redhat.com/errata/RHSA-2026:35839
- https://access.redhat.com/errata/RHSA-2026:36832
- https://access.redhat.com/errata/RHSA-2026:43423
- https://access.redhat.com/errata/RHSA-2026:43424
- https://access.redhat.com/errata/RHSA-2026:43425
- https://access.redhat.com/errata/RHSA-2026:43460
- https://access.redhat.com/errata/RHSA-2026:43461
- https://access.redhat.com/errata/RHSA-2026:46386
- https://access.redhat.com/errata/RHSA-2026:46387
- https://access.redhat.com/security/cve/CVE-2026-8357
- https://bugzilla.redhat.com/show_bug.cgi?id=2488964
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-8357.json