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CVE PROGRAM SOURCE RECORD6.9 Medium

CVE-2025-58446

xgrammar vulnerable to denial of service by huge enum grammar

Description

xgrammar is an open-source library for efficient, flexible, and portable structured generation. A grammar optimizer introduced in 0.1.23 processes large grammars (>100k characters) at very low rates, and can be used for DOS of model providers. This issue is fixed in version 0.1.24.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

mlc-ai xgrammar

  • = 0.1.23, < 0.1.24affected

References