CVE-2025-48944 (GCVE-0-2025-48944)
Vulnerability from cvelistv5 – Published: 2025-05-30 18:38 – Updated: 2025-05-30 18:56
VLAI
EPSS
VEX
Title
vLLM Tool Schema allows DoS via Malformed pattern and type Fields
Summary
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.
Severity
6.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-05-30 18:56 UTC
CWE
- CWE-20 - Improper Input Validation
Assigner
GitHub_M
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/vllm-project/vllm/security/adv… | x_refsource_CONFIRM |
| https://github.com/vllm-project/vllm/pull/17623 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| vllm-project | vllm |
Affected:
>= 0.8.0, < 0.9.0
|
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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