CVEvulnerability
CVE-2025-48943
6.5 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2025-05-30
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-248
Description
vLLM is an inference and serving engine for large language models (LLMs). Version 0.8.0 up to but excluding 0.9.0 have a Denial of Service (ReDoS) that causes the vLLM server to crash if an invalid regex was provided while using structured output. This vulnerability is similar to GHSA-6qc9-v4r8-22xg/CVE-2025-48942, but for regex instead of a JSON schema. Version 0.9.0 fixes the issue.
Affected configurations
• vllm vllm (>= 0.8.0 < 0.9.0)
Related
Weakness · CWE (1)
- CWE-248 Uncaught Exception weakness
References
- https://github.com/vllm-project/vllm/commit/08bf7840780980c7568c573c70a6a8db94fd45ff Patch
- https://github.com/vllm-project/vllm/issues/17313 Issue Tracking
- https://github.com/vllm-project/vllm/pull/17623 Issue Tracking, Patch
- https://github.com/vllm-project/vllm/security/advisories/GHSA-9hcf-v7m4-6m2j Vendor Advisory