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.
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This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 0.0%, top 85% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
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.
August 25, 2025
September 9, 2025
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| xgrammar | 0.1.0 ... 0.1.9 (23 versions) | 0.1.21 | — |
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
RHSA-2025:19421 — Important
RHSA-2025:19422 — Important
RHSA-2025:19423 — Important
RHSA-2025:19424 — Important
RHSA-2025:19425 — Important
RHSA-2025:19426 — Important
RHSA-2025:19427 — Important
RHSA-2025:19428 — Important
RHSA-2025:19429 — Important
RHSA-2025:19430 — Important
Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.
See which npm, PyPI, Go, and Maven packages are affected by CVE-2025-57809
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redhat