CVE-2026-5374 PUBLISHED

runZero Platform MCP information leak

Assigner: runZero
Reserved: 01.04.2026 Published: 07.04.2026 Updated: 07.04.2026

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.

Metrics

CVSS 3.1

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

Attack Vector	Network	Scope	Changed
Attack Complexity	High	Confidentiality Impact	High
Privileges Required	High	Integrity Impact	None
User Interaction	None	Availability Impact	None

CVSS 3.1

Product Status

Vendor	runZero
Product	Platform
Versions	Default: unaffected affected from 0 to 4.0.260202.0 (excl.)

Solutions

This issue was fixed in version 4.0.260202.0 of the runZero Platform

Credits

runZero finder

References

Problem Types

CWE-863: Incorrect Authorization CWE