CVE-2026-1260

HIGH

Sentencepiece < 0.2.1 - Memory Corruption via Vulnerable Model File

Title source: llm
STIX 2.1

Description

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.

Scores

CVSS v3 7.8
EPSS 0.0016
EPSS Percentile 5.8%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-119
Status published
Products (3)
google/sentencepiece < 0.2.1
Google/Sentencepiece All versions prior to 0.2.1
pypi/sentencepiece 0 - 0.2.1PyPI
Published Jan 22, 2026
Tracked Since Feb 18, 2026