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.
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-1260.json
https://github.com/google/sentencepiece/releases/tag/v0.2.1
https://bugzilla.redhat.com/show_bug.cgi?id=2432079
https://access.redhat.com/security/cve/CVE-2026-1260
Published: 2026-01-22
Updated: 2026-06-30
Base Score: 6.8
Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C
Severity: Medium
Base Score: 7.8
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Severity: High
Base Score: 8.5
Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Severity: High
EPSS: 0.00002