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Status published
High
CVE-2025-57809
XGrammar affected by Denial of Service by infinite recursion grammars
Vulnerability Description
XGrammar is an open-source library for efficient, flexible, and portable structured generation. Prior to version 0.1.21, XGrammar has an infinite recursion issue in the grammar. This issue has been resolved in version 0.1.21.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
Affected Vendor
mlc-ai
View all reports →Affected Software
xgrammar
Vulnerable Versions:
< 0.1.21
Timeline
Official Publish:
August 25th, 2025
Last Modified:
August 26th, 2025
Added to House:
July 22nd, 2026
CVSS Vectors
Weaknesses (CWE)
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.