runZero MCP 'Findings summaries' Data Leak

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-81846
StatePUBLISHED
AssignerrunZero
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-01 19:17:28 UTC
Updated2026-09-01 20:17:24 UTC
DescriptionAn 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).

Risk And Classification

Primary CVSS: v3.1 3.5 LOW from 44488dab-36db-4358-99f9-bc116477f914

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

EPSS: 0.002060000 probability, percentile 0.106790000 (date 2026-09-03)

Problem Types: CWE-639 | CWE-639 CWE-639 Authorization bypass through User-Controlled key

VersionSourceTypeScoreSeverityVector
3.144488dab-36db-4358-99f9-bc116477f914Secondary3.5LOWCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N
3.1CNACVSS3.5LOWCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
None
Availability
None

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA RunZero Platform affected 4.0.251031.0 5.1.260825.0 semver Not specified

References

ReferenceSourceLinkTags
www.runzero.com/advisories/runzero-mcp-findings-summaries-data-leak-cve-2026-... 44488dab-36db-4358-99f9-bc116477f914 www.runzero.com
help.runzero.com/docs/release-notes 44488dab-36db-4358-99f9-bc116477f914 help.runzero.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: runZero, Inc. (en)

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