CVE-2026-1260: Google Sentencepiece

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

Invalid memory access in Sentencepiece versions less than 0.2.1 when using a vulnerable model file, which is not created in the normal training procedure.

Affected products

• Google Sentencepiece: before 0.2.1 (fixed in 0.2.1)

Published 2026-01-22. Last modified 2026-07-15.