FKIE_CVE-2026-61539

Vulnerability from fkie_nvd - Published: 2026-08-21 21:17 - Updated: 2026-10-12 16:10
Severity
10.0 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Summary
Xinference is an inference API for running open-source, speech, and multimodal models. In 2.5.0 and earlier, Xinference passes attacker-influenced Llama3 tool-call output to eval() in xinference/model/llm/tool_parsers/llama3_tool_parser.py and xinference/model/llm/utils.py. Requests to /v1/chat/completions with a tools field flow through xinference/api/restful_api.py, xinference/model/llm/transformers/core.py, handle_chat_result_non_streaming(), and _post_process_completion() before extract_tool_calls() or _eval_llama3_chat_arguments() evaluates the model-generated Python expression. An unauthenticated remote attacker can influence that output through a crafted prompt and execute commands in the Xinference server process context. This issue is fixed in version 2.7.0.
References
security-advisories@github.comhttps://github.com/xorbitsai/inference/commit/1b3d220f342ce68d34cec4586d9409d457dadc42
security-advisories@github.comhttps://github.com/xorbitsai/inference/pull/4786
security-advisories@github.comhttps://github.com/xorbitsai/inference/releases/tag/v2.7.0
security-advisories@github.comhttps://github.com/xorbitsai/inference/security/advisories/GHSA-x2rj-828p-hx9m
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "inference",
          "vendor": "xorbitsai",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.7.0"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Xinference is an inference API for running open-source, speech, and multimodal models. In 2.5.0 and earlier, Xinference passes attacker-influenced Llama3 tool-call output to eval() in xinference/model/llm/tool_parsers/llama3_tool_parser.py and xinference/model/llm/utils.py. Requests to /v1/chat/completions with a tools field flow through xinference/api/restful_api.py, xinference/model/llm/transformers/core.py, handle_chat_result_non_streaming(), and _post_process_completion() before extract_tool_calls() or _eval_llama3_chat_arguments() evaluates the model-generated Python expression. An unauthenticated remote attacker can influence that output through a crafted prompt and execute commands in the Xinference server process context. This issue is fixed in version 2.7.0."
    },
    {
      "lang": "es",
      "value": "Xinference es una API de inferencia para ejecutar modelos de c\u00f3digo abierto, de voz y multimodales. En las versiones 2.5.0 y anteriores, Xinference pasa la salida de llamadas a herramientas de Llama3 influenciada por el atacante a eval() en xinference/model/llm/tool_parsers/llama3_tool_parser.py y xinference/model/llm/utils.py. Las solicitudes a /v1/chat/completions con un campo \u0027tools\u0027 fluyen a trav\u00e9s de xinference/api/restful_api.py, xinference/model/llm/transformers/core.py, handle_chat_result_non_streaming() y _post_process_completion() antes de que extract_tool_calls() o _eval_llama3_chat_arguments() eval\u00faen la expresi\u00f3n Python generada por el modelo. Un atacante remoto no autenticado puede influenciar esa salida a trav\u00e9s de un prompt manipulado y ejecutar comandos en el contexto del proceso del servidor de Xinference. Este problema se ha solucionado en la versi\u00f3n 2.7.0."
    }
  ],
  "id": "CVE-2026-61539",
  "lastModified": "2026-10-12T16:10:00.220",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 10.0,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 6.0,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-61539",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-24T19:45:03.839039Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-21T21:17:00.867",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/xorbitsai/inference/commit/1b3d220f342ce68d34cec4586d9409d457dadc42"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/xorbitsai/inference/pull/4786"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/xorbitsai/inference/releases/tag/v2.7.0"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/xorbitsai/inference/security/advisories/GHSA-x2rj-828p-hx9m"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-95"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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