CVE-2026-5374

{"id": "CVE-2026-5374", "cveTags": [], "metrics": {"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}]}, "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."}], "lastModified": "2026-04-21T15:10:18.220", "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"}