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CVE-2025-48944

Estado: AnalizadaMedia (6.5)—

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

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Vllm — Vllm

CWE

Referencias

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{
  "id": "CVE-2025-48944",
  "cveTags": [],
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          "id": "CVE-2025-48944",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-05-30T18:56:49.162584Z"
        }
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
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  "published": "2025-05-30T19:15:30.433",
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      "url": "https://github.com/vllm-project/vllm/pull/17623",
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      "value": "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."
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      "value": "vLLM es un motor de inferencia y servicio para modelos de lenguaje grandes (LLM). Desde la versión 0.8.0 hasta la 0.9.0 (excluyendo esta última), el backend de vLLM utilizado con el endpoint de OpenAPI /v1/chat/completions no valida entradas inesperadas o incorrectas en los campos \"patrón\" y \"tipo\" al invocar la funcionalidad de herramientas. Estas entradas no se validan antes de compilarse o analizarse, lo que provoca un bloqueo del trabajador de inferencia con una sola solicitud. El trabajador permanece inactivo hasta que se reinicia. La versión 0.9.0 corrige este problema."
    }
  ],
  "lastModified": "2026-06-17T09:30:31.710",
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