VULNERABILITY INTELLIGENCE

CVE-2026-8357

CVSS score7.8 HIGH
EPSS probability0.22%
CISA KEVNot currently listed
Published2026-06-15
Last modified2026-10-25
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Description

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.

Weakness classification

  • security@documentfoundation.org: CWE-193
  • 0b0ca135-0b70-47e7-9f44-1890c2a1c46c: CWE-131

Primary references