FKIE_CVE-2026-5374

Vulnerability from fkie_nvd - Published: 2026-04-07 15:17 - Updated: 2026-04-21 15:10
Severity ?
5.8 (Medium) - CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N
Summary
An issue that allowed MCP agents to access remediation and asset information from outside of the authorized organization scope has been resolved. This is an instance of CWE-863: Incorrect Authorization, and has an estimated CVSS score of CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N (5.8 Medium). This issue was fixed in version 4.0.260202.0 of the runZero Platform.
References
44488dab-36db-4358-99f9-bc116477f914https://help.runzero.com/docs/release-notes/#402602020Release Notes
44488dab-36db-4358-99f9-bc116477f914https://www.runzero.com/advisories/runzero-platform-mcp-infoleak-cve-2026-5374/Vendor Advisory
Impacted products
Vendor Product Version
runzero runzero_platform *
To clipboard 

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  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:runzero:runzero_platform:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "0C017AE6-897C-4120-B1B0-B1238A3CC741",
              "versionEndExcluding": "4.0.260202.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue that allowed MCP agents to access remediation and asset information from outside of the authorized organization scope has been resolved. This is an instance of CWE-863: Incorrect Authorization, and has an estimated CVSS score of CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N (5.8 Medium). This issue was fixed in version 4.0.260202.0 of the runZero Platform."
    }
  ],
  "id": "CVE-2026-5374",
  "lastModified": "2026-04-21T15:10:18.220",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.8,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "HIGH",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 1.3,
        "impactScore": 4.0,
        "source": "44488dab-36db-4358-99f9-bc116477f914",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-04-07T15:17:47.307",
  "references": [
    {
      "source": "44488dab-36db-4358-99f9-bc116477f914",
      "tags": [
        "Release Notes"
      ],
      "url": "https://help.runzero.com/docs/release-notes/#402602020"
    },
    {
      "source": "44488dab-36db-4358-99f9-bc116477f914",
      "tags": [
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      "url": "https://www.runzero.com/advisories/runzero-platform-mcp-infoleak-cve-2026-5374/"
    }
  ],
  "sourceIdentifier": "44488dab-36db-4358-99f9-bc116477f914",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-863"
        }
      ],
      "source": "44488dab-36db-4358-99f9-bc116477f914",
      "type": "Secondary"
    }
  ]
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.