What is CVE-2026-5379?

CVE-2026-5379 is a low-severity vulnerability in Runzero Platform, classified under Incorrect Authorization. CVSS score: 3.0/10. Published 2026-04-07.

How severe is CVE-2026-5379?

Low severity. CVSS v3 base score is 3.0 out of 10.

Auth bypass in Runzero Platform

CVE-2026-5379

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/…

Vulnerability class: Broken Access Control

EPSS: 0.000 (7.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.0 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:N.

Affected products

Runzero Platform — versions 0

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

help.runzero.com/docs/release-notes/ (release-notes)
www.runzero.com/advisories/runzero-platform-mcp-cert-infoleak-cve-2026-5379/ (vendor-advisory)

Frequently asked questions

What is CVE-2026-5379?: CVE-2026-5379 is a low-severity vulnerability in Runzero Platform, classified under Incorrect Authorization. CVSS score: 3.0/10. Published 2026-04-07.
How severe is CVE-2026-5379?: Low severity. CVSS v3 base score is 3.0 out of 10.