CVE-2026-5374CWE-863

runZero Platform MCP information leak

Medium · published April 7, 2026

CVSS v3.1
5.8
EPSS
0%
Percentile
25.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.8 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00332 · 25.1th percentile
Weakness
CWE-863 · Incorrect Authorization
Published
2026-04-07T14:10Z
EPSS history
Timeline
  • 07 APR 14:10Z
    runZero Platform MCP information leak
    cvelistv5