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CVE-2026-1260— Invalid Memory Access in Sentencepiece,

Quick assessment

Affected
Google Sentencepiece
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Google SentencePiece是美国谷歌（Google）公司的一款用于基于神经网络的文本生成的无监督文本分词器。。 Google SentencePiece 0.2.1之前版本存在安全漏洞，该漏洞源于使用非正常训练过程创建的易受攻击模型文件时存在无效内存访问。

AI Predicted 5.5 Difficulty: Hard EPSS 0.18% · P7

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
Google Sentencepiece All versions prior to 0.2.1 affected
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I. Basic Information for CVE-2026-1260

Vulnerability Information
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Vulnerability Title
Invalid Memory Access in Sentencepiece,
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
内存缓冲区边界内操作的限制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Google SentencePiece 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Google SentencePiece是美国谷歌（Google）公司的一款用于基于神经网络的文本生成的无监督文本分词器。。 Google SentencePiece 0.2.1之前版本存在安全漏洞，该漏洞源于使用非正常训练过程创建的易受攻击模型文件时存在无效内存访问。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Google Sentencepiece All versions prior to 0.2.1 -

II. Public POCs for CVE-2026-1260

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III. Intelligence Information for CVE-2026-1260

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IV. Related Vulnerabilities

Same vendor: Google
Same weakness: CWE-119

V. Comments for CVE-2026-1260

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