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I. Basic Information for CVE-2026-25048
Vulnerability Information
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Vulnerability Title
xgrammar: Multi-layer nesting causes DoS
Source: NVD (National Vulnerability Database)
Vulnerability Description
xgrammar is an open-source library for efficient, flexible, and portable structured generation. Prior to version 0.1.32, the multi-level nested syntax caused a segmentation fault (core dumped). This issue has been patched in version 0.1.32.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
未经控制的递归
Source: NVD (National Vulnerability Database)
Vulnerability Title
XGrammar 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
XGrammar是mlc-ai开源的一个快速、灵活、便携的结构化生成工具。 XGrammar 0.1.32之前版本存在安全漏洞，该漏洞源于多级嵌套语法导致分段错误。
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
VendorProductAffected VersionsCPESubscribe
mlc-aixgrammar < 0.1.32 -
II. Public POCs for CVE-2026-25048
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III. Intelligence Information for CVE-2026-25048
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IV. Related Vulnerabilities
Same product: xgrammar
Same vendor: mlc-ai
Same weakness: CWE-674
V. Comments for CVE-2026-25048

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