CVE-2025-63681

{
  "id": "CVE-2025-63681",
  "sourceIdentifier": "[email protected]",
  "published": "2025-12-04T16:16:22.447",
  "lastModified": "2026-11-04T22:10:00.210",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "open-webui v0.6.33 is vulnerable to Incorrect Access Control. The API /api/tasks/stop/ directly accesses and cancels tasks without verifying user ownership, enabling attackers (a normal user) to stop arbitrary LLM response tasks."
    },
    {
      "lang": "es",
      "value": "open-webui v0.6.33 es vulnerable a Control de Acceso Incorrecto. La API /api/tasks/stop/ accede y cancela tareas directamente sin verificar la propiedad del usuario, lo que permite a los atacantes (un usuario normal) detener tareas arbitrarias de respuesta de LLM."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "version": "n/a",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
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        "source": "[email protected]",
        "type": "Primary",
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          "baseScore": 4.3,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 1.4
      },
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          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE"
        },
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      }
    ],
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        "ssvcData": {
          "timestamp": "2025-12-05T19:50:21.144313Z",
          "id": "CVE-2025-63681",
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          "role": "CISA Coordinator",
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  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
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  "references": [
    {
      "url": "https://github.com/TOAST-Research/pocs/blob/main/openwebui/arbitirary_task_stop/report.md",
      "source": "[email protected]",
      "tags": [
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      "url": "https://github.com/open-webui/open-webui/blob/46ae3f4f5d7d4d706041bdae4ad2d802e568712b/backend/open_webui/main.py#L1652",
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}