CVE-2026-5374

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.

CVSS v3 5.8 MEDIUM

5.8^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.3 / Impact : 4.0

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://help.runzero.com/docs/release-notes/#402602020	Release Notes
https://www.runzero.com/advisories/runzero-platform-mcp-infoleak-cve-2026-5374/	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:runzero:runzero_platform:*:*:*:*:*:*:*:*

History

26 Oct 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) Un problema que permitía a los agentes de MCP acceder a información de remediación y activos desde fuera del alcance de la organización autorizada ha sido resuelto. Esto es una instancia de CWE-863: Autorización Incorrecta, y tiene una puntuación CVSS estimada de CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N (5.8 Media). Este problema fue corregido en la versión 4.0.260202.0 de la Plataforma runZero.

Information

Published : 2026-04-07 15:17

Updated : 2026-10-26 21:10

NVD link : CVE-2026-5374

Mitre link : CVE-2026-5374

CVE.ORG link : CVE-2026-5374

JSON object : View

Products Affected

runzero

runzero_platform

CWE

CWE-863

Incorrect Authorization

{"id": "CVE-2026-5374", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-5374", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-04-07T14:31:36.829367Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "44488dab-36db-4358-99f9-bc116477f914", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 5.8, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}, "impactScore": 4.0, "exploitabilityScore": 1.3}]}, "affected": [{"source": "44488dab-36db-4358-99f9-bc116477f914", "affectedData": [{"vendor": "runZero", "product": "Platform", "versions": [{"status": "affected", "version": "0", "lessThan": "4.0.260202.0", "versionType": "semver"}], "defaultStatus": "unaffected"}]}], "published": "2026-04-07T15:17:47.307", "references": [{"url": "https://help.runzero.com/docs/release-notes/#402602020", "tags": ["Release Notes"], "source": "44488dab-36db-4358-99f9-bc116477f914"}, {"url": "https://www.runzero.com/advisories/runzero-platform-mcp-infoleak-cve-2026-5374/", "tags": ["Vendor Advisory"], "source": "44488dab-36db-4358-99f9-bc116477f914"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "44488dab-36db-4358-99f9-bc116477f914", "description": [{"lang": "en", "value": "CWE-863"}]}], "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."}, {"lang": "es", "value": "Un problema que permit\u00eda a los agentes de MCP acceder a informaci\u00f3n de remediaci\u00f3n y activos desde fuera del alcance de la organizaci\u00f3n autorizada ha sido resuelto. Esto es una instancia de CWE-863: Autorizaci\u00f3n Incorrecta, y tiene una puntuaci\u00f3n CVSS estimada de CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N (5.8 Media). Este problema fue corregido en la versi\u00f3n 4.0.260202.0 de la Plataforma runZero."}], "lastModified": "2026-10-26T21:10:00.170", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:runzero:runzero_platform:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0C017AE6-897C-4120-B1B0-B1238A3CC741", "versionEndExcluding": "4.0.260202.0"}], "operator": "OR"}]}], "sourceIdentifier": "44488dab-36db-4358-99f9-bc116477f914"}