CVE-2026-81846

Low

Description

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).

SeverityLow

CVSS3.5

Exploit probability—

ProductPlatform

PublishedSep 1, 2026

First seenSep 1, 2026

Weakness typeCWE-639Authorization bypass through user-controlled key

How to fix

Vendor advisories

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

Affected products

Product	Affected versions	Fixed in
runZero Platform	4.0.251031.0 ≤ v ≤ 5.1.260825.0	—

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