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

Quick assessment

Affected
runZero Platform
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

runZero Platform MCP 服务中存在的授权绕过漏洞已在版本 5.1.260826.0 中修复。该问题属于 CWE-639（通过用户可控的键进行的授权绕过），其预估 CVSS 得分为 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N，得分为 3.5（低危）。

CVSS 3.5 · Low

Possible ATT&CK Techniques 1 AI

T1557 · Adversary-in-the-Middle

Affected Version Matrix 1

VendorProduct Version RangeStatus
runZero Platform 4.0.251031.0≤ 5.1.260825.0 affected
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I. Basic Information for CVE-2026-81846

Vulnerability Information
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Vulnerability Title
runZero MCP 'Findings summaries' Data Leak
Source: CVE Program / CVE List V5
Vulnerability 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).
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
runZero Platform 4.0.251031.0 ~ 5.1.260825.0 -

II. Public POCs for CVE-2026-81846

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III. Intelligence Information for CVE-2026-81846

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Vendor Advisories for CVE-2026-81846 (1)

Other References for CVE-2026-81846 (1)

IV. Related Vulnerabilities

Same product: Platform
Same vendor: runZero
Same weakness: CWE-639

V. Comments for CVE-2026-81846

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