CVE-2026-25048

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/mlc-ai/xgrammar/releases/tag/v0.1.32	Release Notes
https://github.com/mlc-ai/xgrammar/security/advisories/GHSA-7rgv-gqhr-fxg3	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:mlc-ai:xgrammar:*:*:*:*:*:*:*:*

History

13 Mar 2026, 18:09

Type	Values Removed	Values Added
Summary		(es) xgrammar es una biblioteca de código abierto para una generación estructurada eficiente, flexible y portátil. Antes de la versión 0.1.32, la sintaxis anidada multinivel causaba un fallo de segmentación (volcado de memoria principal). Este problema ha sido parcheado en la versión 0.1.32.
CPE		cpe:2.3:a:mlc-ai:xgrammar::::::::
First Time		Mlc-ai Mlc-ai xgrammar
References	~~() https://github.com/mlc-ai/xgrammar/releases/tag/v0.1.32 -~~	() https://github.com/mlc-ai/xgrammar/releases/tag/v0.1.32 - Release Notes
References	~~() https://github.com/mlc-ai/xgrammar/security/advisories/GHSA-7rgv-gqhr-fxg3 -~~	() https://github.com/mlc-ai/xgrammar/security/advisories/GHSA-7rgv-gqhr-fxg3 - Exploit, Vendor Advisory
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.5

05 Mar 2026, 16:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-03-05 16:16

Updated : 2026-03-13 18:09

NVD link : CVE-2026-25048

Mitre link : CVE-2026-25048

CVE.ORG link : CVE-2026-25048

JSON object : View

Products Affected

mlc-ai

xgrammar

CWE

CWE-674

Uncontrolled Recursion

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