vLLM vulnerable to Denial of Service by abusing xgrammar cache

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

• CISA KEV Not listed.
• EPSS No score.

Timeline

This record came from the full history of the GitHub Advisory Database, published 15 Apr 2025. New records show when each source confirmed them.

Sources

• GitHub Advisory Database: GHSA-hf3c-wxg2-49q9
• OSV: GHSA-hf3c-wxg2-49q9
• github.com/mlc-ai/xgrammar/security/advisories/GHSA-389x-67px-mjg3
• github.com/vllm-project/vllm/security/advisories/GHSA-hf3c-wxg2-49q9
• github.com/vllm-project/vllm/pull/16283
• github.com/vllm-project/vllm/commit/cb84e45ac75b42ba6795145923e8eb323bb825ad
• github.com/vllm-project/vllm

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.