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CVE-2026-76397

Estado: AnalizadaAlta (8.1)—

In Splunk AI Toolkit versions below 6.0.0, a user who holds the "power" Splunk role could access and delete all relevant data in experiment history, including data associated with other users. The vulnerability is possible because Splunk AI Toolkit does not preserve the trusted experiment scope when it processes caller-controlled query values before accessing restricted history data. For more information see Experiment Assistants (https://help.splunk.com/en/splunk-cloud-platform/apply-machine-learning/use-ai-toolkit/5.6.4/experiment-assistants) in the Splunk documentation.

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Acceso remoto con PR:L (rol 'power') sin interacción, permitiendo modificar y eliminar datos de historial ajenos; CWE-639 (autorización inadecuada) confirma el bypass de restricciones de alcance.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Vulnerability ScanningThreat Intelligence ProgramPrivileged Account ManagementNetwork SegmentationEncrypt Sensitive InformationDisable or Remove Feature or Program

Tecnologías afectadas (1)

Splunk — AI Toolkit

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-76397",
  "cveTags": [],
  "metrics": {
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          "role": "CISA Coordinator",
          "options": [
            {
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            },
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            },
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            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-08-20T15:13:03.119856Z"
        }
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          "attackVector": "NETWORK",
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.2,
        "exploitabilityScore": 2.8
      }
    ]
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  "affected": [
    {
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      "affectedData": [
        {
          "vendor": "Splunk",
          "product": "Splunk AI Toolkit",
          "versions": [
            {
              "status": "affected",
              "version": "5.7",
              "lessThan": "6.0.0",
              "versionType": "custom"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-08-19T22:17:26.270",
  "references": [
    {
      "url": "https://advisory.splunk.com/advisories/SVD-2026-0808",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@cisco.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "source": "psirt@cisco.com",
      "description": [
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          "lang": "en",
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        }
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    }
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      "lang": "en",
      "value": "In Splunk AI Toolkit versions below 6.0.0, a user who holds the \"power\" Splunk role could access and delete all relevant data in experiment history, including data associated with other users. The vulnerability is possible because Splunk AI Toolkit does not preserve the trusted experiment scope when it processes caller-controlled query values before accessing restricted history data. For more information see Experiment Assistants (https://help.splunk.com/en/splunk-cloud-platform/apply-machine-learning/use-ai-toolkit/5.6.4/experiment-assistants) in the Splunk documentation."
    }
  ],
  "lastModified": "2026-08-21T18:56:07.450",
  "configurations": [
    {
      "nodes": [
        {
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          "cpeMatch": [
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          ],
          "operator": "OR"
        }
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    }
  ],
  "sourceIdentifier": "psirt@cisco.com"
}