CVEvulnerability
CVE-2025-48944
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-20
Description
vLLM is an inference and serving engine for large language models (LLMs). In version 0.8.0 up to but excluding 0.9.0, the vLLM backend used with the /v1/chat/completions OpenAPI endpoint fails to validate unexpected or malformed input in the "pattern" and "type" fields when the tools functionality is invoked. These inputs are not validated before being compiled or parsed, causing a crash of the inference worker with a single request. The worker will remain down until it is restarted. Version 0.9.0 fixes the issue.
Affected configurations
• vllm vllm (>= 0.8.0 < 0.9.0)
Related
Weakness · CWE (1)
- CWE-20 Improper Input Validation weakness
References
- https://github.com/vllm-project/vllm/pull/17623 Issue Tracking, Vendor Advisory
- https://github.com/vllm-project/vllm/security/advisories/GHSA-vrq3-r879-7m65 Exploit, Vendor Advisory