Low 3.5Published Sep 1, 2026

CVE-2026-81846runZero MCP 'Findings summaries' Data Leak

Updated under an hour ago (2026-10-19 09:50 UTC)

Does this affect you?

It affects runZero Platform. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for runZero Platform

Exploited in the last 30 days

An authorization bypass in the runZero Platform MCP service has been resolved in version 5.1.260826.0. This issue is an instance of CWE-639: Authorization Bypass Through User-Controlled Key and has an estimated CVSS score of CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N (3.5 Low).

CVSS: 3.5 LOW (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N
Weakness (CWE): CWE-639
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: runZero
NVD analysis: Deferred
Record last updated: Sep 1, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

runZero Platform runzero:platform (from the name)	from 4.0.251031.0 through 5.1.260825.0	CNA record

References

https://www.runzero.com/advisories/runzero-mcp-findings-summaries-data-leak-cve-2026-81846vendor-advisory
https://help.runzero.com/docs/release-notes/#512608260release-notes

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.