CVE-2026-25048
8.7
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| mlc-ai | xgrammar | < 0.1.32 | affected |
Weaknesses
- CWE-674: CWE-674: Uncontrolled Recursion
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: yes
- Technical Impact: partial
xgrammar: xgrammar: Denial of Service via multi-level nested syntax
Additional References
- https://access.redhat.com/security/cve/CVE-2026-25048
- https://bugzilla.redhat.com/show_bug.cgi?id=2444840
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-25048.json
- https://access.redhat.com/errata/RHSA-2026:6761
- https://access.redhat.com/errata/RHSA-2026:5809
- https://access.redhat.com/errata/RHSA-2026:6762
- https://access.redhat.com/errata/RHSA-2026:24977
References
- https://github.com/mlc-ai/xgrammar/security/advisories/GHSA-7rgv-gqhr-fxg3
- https://github.com/mlc-ai/xgrammar/releases/tag/v0.1.32
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