Uncontrolled Recursion Affecting xgrammar package, versions [0.1.31,0.1.32)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-PYTHON-XGRAMMAR-15435539
- published6 Mar 2026
- disclosed5 Mar 2026
- creditylwango613
Introduced: 5 Mar 2026
CVE-2026-25048 (opens in a new tab)How to fix?
Upgrade xgrammar to version 0.1.32 or higher.
Overview
xgrammar is an Efficient, Flexible and Portable Structured Generation
Affected versions of this package are vulnerable to Uncontrolled Recursion through the handling of multi-level nested grammar rules. An attacker can cause a segmentation fault and crash the application by submitting deeply nested input.