CVE-2025-48944

published 2025-05-30

CVE-2025-48944: 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…

Priority P4 34 medium 6.5 CVSS 3.1

AV N AC L PR L UI N S U C N I N A H

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

3 ranges

Vendor	Product	Version range	Fixed in
vllm-project	vllm	—	—
vllm	vllm	>= 0.8.0 < 0.9.0	0.9.0
vllm	vllm	>= 0.8.0 < 0.9.0	0.9.0

CVSS provenance

nvd v3.1 6.5 MEDIUM CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

vendor_redhat 6.5 MEDIUM

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CWE-20