CVE-2026-76306 (GCVE-0-2026-76306)

Vulnerability from cvelistv5 – Published: 2026-10-21 22:52 – Updated: 2026-10-21 22:52
VLAI
Title
Information Disclosure through REST API Query Filters in Splunk SOAR
Summary
In Splunk SOAR versions below 8.7.0, a user that has the "Observer" role could use query filters in the Representational State Transfer (REST) API to infer password hashes and authorization tokens for other users. The information disclosure is possible because Splunk SOAR applies REST API query filters to user records before it protects sensitive fields from query processing. For more information see Using the REST API reference for Splunk SOAR (On-premises) (https://help.splunk.com/en/splunk-soar/soar-on-premises/rest-api-reference/8.5.0/using-the-splunk-soar-rest-api/using-the-rest-api-reference-for-splunk-soar-on-premises), Query for Data (https://help.splunk.com/en/splunk-soar/soar-on-premises/rest-api-reference/7.1.0/using-the-splunk-soar-rest-api/query-for-data), and Manage roles and permissions in Splunk SOAR (On-premises) (https://help.splunk.com/en/splunk-soar/soar-on-premises/administer-soar-on-premises/8.5.0/manage-your-splunk-soar-on-premises-users-and-accounts/manage-roles-and-permissions-in-splunk-soar-on-premises) in the Splunk documentation.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-200 - The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
Assigner
cisco CNA under the mitre root
CNA scorecard C 66/100 over 442 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Splunk Splunk SOAR Affected: 0 , < 8.7.0 (custom)
guessed Create a notification for this product.
Date Public
2026-10-21 00:00
Credits
Brandon Rossi (conda)
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "modules": [
            "REST API"
          ],
          "product": "Splunk SOAR",
          "vendor": "Splunk",
          "versions": [
            {
              "lessThan": "8.7.0",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Brandon Rossi (conda)"
        }
      ],
      "datePublic": "2026-10-21T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "In Splunk SOAR versions below 8.7.0, a user that has the \"Observer\" role could use query filters in the Representational State Transfer (REST) API to infer password hashes and authorization tokens for other users.\nThe information disclosure is possible because Splunk SOAR applies REST API query filters to user records before it protects sensitive fields from query processing.\nFor more information see Using the REST API reference for Splunk SOAR (On-premises) (https://help.splunk.com/en/splunk-soar/soar-on-premises/rest-api-reference/8.5.0/using-the-splunk-soar-rest-api/using-the-rest-api-reference-for-splunk-soar-on-premises), Query for Data (https://help.splunk.com/en/splunk-soar/soar-on-premises/rest-api-reference/7.1.0/using-the-splunk-soar-rest-api/query-for-data), and Manage roles and permissions in Splunk SOAR (On-premises) (https://help.splunk.com/en/splunk-soar/soar-on-premises/administer-soar-on-premises/8.5.0/manage-your-splunk-soar-on-premises-users-and-accounts/manage-roles-and-permissions-in-splunk-soar-on-premises) in the Splunk documentation."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-200",
              "description": "The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.",
              "lang": "en",
              "type": "cwe"
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-21T22:52:09.741Z",
        "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "shortName": "cisco"
      },
      "references": [
        {
          "url": "https://advisory.splunk.com/advisories/SVD-2026-1010"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Upgrade Splunk SOAR to version 8.7.0 or higher."
        }
      ],
      "source": {
        "advisory": "SVD-2026-1010",
        "discovery": ""
      },
      "title": "Information Disclosure through REST API Query Filters in Splunk SOAR"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
    "assignerShortName": "cisco",
    "cveId": "CVE-2026-76306",
    "datePublished": "2026-10-21T22:52:09.741Z",
    "dateReserved": "2026-08-19T12:02:03.623Z",
    "dateUpdated": "2026-10-21T22:52:09.741Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "modules": [
                  "REST API"
                ],
                "product": "Splunk SOAR",
                "vendor": "Splunk",
                "versions": [
                  {
                    "lessThan": "8.7.0",
                    "status": "affected",
                    "version": "0",
                    "versionType": "custom"
                  }
                ]
              }
            ],
            "source": "psirt@cisco.com"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In Splunk SOAR versions below 8.7.0, a user that has the \"Observer\" role could use query filters in the Representational State Transfer (REST) API to infer password hashes and authorization tokens for other users.\nThe information disclosure is possible because Splunk SOAR applies REST API query filters to user records before it protects sensitive fields from query processing.\nFor more information see Using the REST API reference for Splunk SOAR (On-premises) (https://help.splunk.com/en/splunk-soar/soar-on-premises/rest-api-reference/8.5.0/using-the-splunk-soar-rest-api/using-the-rest-api-reference-for-splunk-soar-on-premises), Query for Data (https://help.splunk.com/en/splunk-soar/soar-on-premises/rest-api-reference/7.1.0/using-the-splunk-soar-rest-api/query-for-data), and Manage roles and permissions in Splunk SOAR (On-premises) (https://help.splunk.com/en/splunk-soar/soar-on-premises/administer-soar-on-premises/8.5.0/manage-your-splunk-soar-on-premises-users-and-accounts/manage-roles-and-permissions-in-splunk-soar-on-premises) in the Splunk documentation."
          }
        ],
        "id": "CVE-2026-76306",
        "lastModified": "2026-10-21T23:17:28.770",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "HIGH",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 7.5,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
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              "impactScore": 5.9,
              "source": "psirt@cisco.com",
              "type": "Primary"
            }
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        },
        "published": "2026-10-21T23:17:28.770",
        "references": [
          {
            "source": "psirt@cisco.com",
            "url": "https://advisory.splunk.com/advisories/SVD-2026-1010"
          }
        ],
        "sourceIdentifier": "psirt@cisco.com",
        "vulnStatus": "Received",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-200"
              }
            ],
            "source": "psirt@cisco.com",
            "type": "Primary"
          }
        ]
      }
    }
  }
}



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