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CVE-2026-1260

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Date: January 22, 2026

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.

Severity Score

Related Resources (5)

https://github.com/google/sentencepiece/releases/tag/v0.2.1
https://github.com/google/sentencepiece
https://github.com/google/sentencepiece/commit/d856b67fdb3492e035489abf9b3aaf486144b2c0
https://nvd.nist.gov/vuln/detail/CVE-2026-1260
https://www.mend.io/vulnerability-database/CVE-2026-1260

Severity Score

Weakness Type (CWE)

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-119

Top Fix

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Upgrade Version

Upgrade to version sentencepiece - 0.2.1;sentencepiece - 0.2.1

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

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