CVE-2026-5374

Medium

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.

SeverityMedium

CVSS5.8

Exploit probability—

ProductRunzero Platform

PublishedApr 7, 2026

First seenApr 7, 2026

Weakness typeCWE-863Incorrect authorization

How to fix

Update

runzero runzero_platform4.0.260202.0 or later

Vendor advisories

help.runzero.com/docs/release-notes/#402602020
runzero.com/advisories/runzero-platform-mcp-infoleak-cve-2026-5374/

Affected products

Product	Affected versions	Fixed in
runzero runzero_platform	v < 4.0.260202.0	4.0.260202.0

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