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CVE-2026-20166

Estado: AnalizadaMedia (5.4)—

In Splunk Enterprise versions below 10.2.1 and 10.0.4, and Splunk Cloud Platform versions below 10.2.2510.5, 10.1.2507.16, and 10.0.2503.12, a low-privileged user that does not hold the "admin" or "power" Splunk roles could retrieve the Observability Cloud API access token through the Discover Splunk Observability Cloud app due to improper access control.

This vulnerability does not affect Splunk Enterprise versions below 9.4.9 and 9.3.10 because the Discover Splunk Observability Cloud app does not come with Splunk Enterprise.

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 (2)

Splunk — SplunkSplunk — Splunk Cloud Platform

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-20166",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-20166",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-03-12T15:40:11.819588Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "psirt@cisco.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.4,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.5,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "psirt@cisco.com",
      "affectedData": [
        {
          "vendor": "Splunk",
          "product": "Splunk Enterprise",
          "versions": [
            {
              "status": "affected",
              "version": "10.2",
              "lessThan": "10.2.1",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "10.0",
              "lessThan": "10.0.4",
              "versionType": "custom"
            }
          ]
        },
        {
          "vendor": "Splunk",
          "product": "Splunk Cloud Platform",
          "versions": [
            {
              "status": "affected",
              "version": "10.2.2510",
              "lessThan": "10.2.2510.5",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "10.1.2507",
              "lessThan": "10.1.2507.16",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "10.0.2503",
              "lessThan": "10.0.2503.12",
              "versionType": "custom"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-03-11T17:16:57.130",
  "references": [
    {
      "url": "https://advisory.splunk.com/advisories/SVD-2026-0305",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@cisco.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "psirt@cisco.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-200"
        }
      ]
    },
    {
      "type": "Secondary",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "description": [
        {
          "lang": "en",
          "value": "CWE-200"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In Splunk Enterprise versions below 10.2.1 and 10.0.4, and Splunk Cloud Platform versions below 10.2.2510.5, 10.1.2507.16, and 10.0.2503.12, a low-privileged user that does not hold the \"admin\" or \"power\" Splunk roles could retrieve the Observability Cloud API access token through the Discover Splunk Observability Cloud app due to improper access control. \n\nThis vulnerability does not affect Splunk Enterprise versions below 9.4.9 and 9.3.10 because the Discover Splunk Observability Cloud app does not come with Splunk Enterprise."
    },
    {
      "lang": "es",
      "value": "En las versiones de Splunk Enterprise anteriores a la 10.2.1 y 10.0.4, y en las versiones de Splunk Cloud Platform anteriores a la 10.2.2510.5, 10.1.2507.16 y 10.0.2503.12, un usuario con privilegios bajos que no posee los roles de Splunk 'admin' o 'power' podría recuperar el token de acceso de la API de Observability Cloud a través de la aplicación Discover Splunk Observability Cloud debido a un control de acceso inadecuado.\n\nEsta vulnerabilidad no afecta a las versiones de Splunk Enterprise anteriores a la 9.4.9 y 9.3.10 porque la aplicación Discover Splunk Observability Cloud no viene incluida con Splunk Enterprise."
    }
  ],
  "lastModified": "2026-06-17T10:17:15.070",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "1E7483F3-FE84-42B9-A2E7-6E89B110BA31",
              "versionEndExcluding": "10.0.4",
              "versionStartIncluding": "10.0.0"
            },
            {
              "criteria": "cpe:2.3:a:splunk:splunk:10.2.0:*:*:*:enterprise:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "122C01E6-CD7E-44B3-BC65-2ACEDFE704E5"
            }
          ],
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
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          "cpeMatch": [
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              "versionEndExcluding": "10.0.2503.12",
              "versionStartIncluding": "10.0.2503"
            },
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              "criteria": "cpe:2.3:a:splunk:splunk_cloud_platform:*:*:*:*:*:*:*:*",
              "vulnerable": true,
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              "versionEndExcluding": "10.1.2507.16",
              "versionStartIncluding": "10.1.2507"
            },
            {
              "criteria": "cpe:2.3:a:splunk:splunk_cloud_platform:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "6609708F-A13F-4E4E-9883-C11659BD6C3C",
              "versionEndExcluding": "10.2.2510.5",
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          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "psirt@cisco.com"
}