CVE-2026-5374

EUVD-2026-19635
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.8 MEDIUM
NETWORK
HIGH
HIGH
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Common Weakness Enumeration
References
https://help.runzero.com/docs/release-notes/#402602020
https://www.runzero.com/advisories/runzero-platform-mcp-infoleak-cve-2026-5374/