What is CVE-2025-32381?

CVE-2025-32381 is a medium-severity vulnerability in Mlc-ai Xgrammar, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 6.5/10. Published 2025-04-09.

How severe is CVE-2025-32381?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Resource exhaustion in Mlc-ai Xgrammar

CVE-2025-32381

XGrammar is an open-source library for efficient, flexible, and portable structured generation. Prior to 0.1.18, Xgrammar includes a cache for compiled grammars to increase performance with repeated use of the same grammar. This cache is h…

EPSS: 0.004 (34.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Mlc-ai Xgrammar — versions < 0.1.18

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
security-advisories@github.com (Patch, x_refsource_MISC, Issue Tracking)
security-advisories@github.com (Patch, x_refsource_MISC, Issue Tracking)

Frequently asked questions

What is CVE-2025-32381?: CVE-2025-32381 is a medium-severity vulnerability in Mlc-ai Xgrammar, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 6.5/10. Published 2025-04-09.
How severe is CVE-2025-32381?: Medium severity. CVSS v3 base score is 6.5 out of 10.