CVE-2026-5379

runZero Platform MCP certification information leak

CVSS 3 LOWEPSS 0.1%CWE-863

Vexday Risk Score

8Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 3EPSS 0.1%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Lifecycle

07 Apr 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:N

Affected products

runZero · Platform

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References

https://help.runzero.com/docs/release-notes/#402602030 https://www.runzero.com/advisories/runzero-platform-mcp-cert-infoleak-cve-2026-5379/