Vulnerability · Published Apr 7, 2026 · Assigned by runZero
CVE-2026-5379runZero Platform MCP certification information leak
Low 3.0
In plain English
A low-severity incorrect authorization in Platform from runZero. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 2% of all known vulnerabilities).
Severity (CVSS 3.1)3.0Low
Exploit odds (30 days)0.1%top 98.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
An issue that allowed MCP agents to access certificate information from outside of their 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:L/I:N/A:N (3.0 Low). This issue was fixed in version 4.0.260203.0 of the runZero Platform.
Affected products (as reported)
Weakness: CWE-863 · Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:N