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 /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.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
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

Configurations

Configuration 1 (hide)

cpe:2.3:a:vllm:vllm:*:*:*:*:*:*:*:*

History

01 Jul 2025, 20:42

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-05-30 19:15

Updated : 2025-07-01 20:42

NVD link : CVE-2025-48944

Mitre link : CVE-2025-48944

CVE.ORG link : CVE-2025-48944

JSON object : View

Products Affected

vllm

vllm

CWE

CWE-20

Improper Input Validation

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