Servers and applications
CVE-2025-48942
vLLM is an inference and serving engine for large language models (LLMs). In versions 0.8.0 up to but excluding 0.9.0, hitting the /v1/completions API with a invalid json_schema as a Guided Param kills the vllm server. This vulnerability is similar GHSA-9hcf-v7m4-6m2j/CVE-2025-48943, but for regex instead of a JSON schema. Version 0.9.0 fixes the issue.
- Severity
- Medium 6.5
- Published
- 30 May 2025
- Last changed
- 17 Jun 2026
- Added to UpHeron
- 3 Nov 2026
- Fixed in
- 0.9.0
- Sources
- NVD
Affected software
| Software | Affected versions |
|---|---|
vLLMServers and applications · cpe:a:vllm:vllm |
|