GHSA-9hcf-v7m4-6m2jMediumCVSS 6.5
vLLM allows clients to crash the openai server with invalid regex
🔗 CVE IDs covered (1)
📋 Description
Impact
A denial of service bug caused the vLLM server to crash if an invalid regex was provided while using structured output. This vulnerability is similar to GHSA-6qc9-v4r8-22xg, but for regex instead of a JSON schema.
Issue with more details: https://github.com/vllm-project/vllm/issues/17313
Patches
- https://github.com/vllm-project/vllm/pull/17623
🎯 Affected products1
- pip/vllm:>= 0.8.0, < 0.9.0
🔗 References (7)
- https://github.com/vllm-project/vllm/security/advisories/GHSA-9hcf-v7m4-6m2j
- https://github.com/vllm-project/vllm/issues/17313
- https://github.com/vllm-project/vllm/pull/17623
- https://github.com/vllm-project/vllm/commit/08bf7840780980c7568c573c70a6a8db94fd45ff
- https://nvd.nist.gov/vuln/detail/CVE-2025-48943
- https://github.com/pypa/advisory-database/tree/main/vulns/vllm/PYSEC-2025-55.yaml
- https://github.com/advisories/GHSA-9hcf-v7m4-6m2j