CVE-2026-5374

runZero Platform MCP information leak

State: Published
Severity: 5.8 Medium
Published: Apr 7, 2026
Updated: Apr 7, 2026
Reserved: Apr 1, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	5.8 Medium	CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N	runZero

Weaknesses

CWE-863 Incorrect Authorization

Affected Products

Product	Versions
PlatformrunZero	before 4.0.260202.0Affected

References

https://help.runzero.com/docs/release-notes/#402602020release-notes
https://www.runzero.com/advisories/runzero-platform-mcp-infoleak-cve-2026-5374/vendor-advisory

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