---
id: CVE-2026-78806
title: >-
  An issue in Matter Standard Specification-Implementation gap v1.5.1 Matter
  Project Chip V1.5.1 allows a local attacker to obtain sensitive information
  via the PerformCommissioningStep function in the ChipDeviceController.cpp
  component
summary: >-
  An issue in Matter Standard Specification-Implementation gap v1.5.1 Matter
  Project Chip V1.5.1 allows a local attacker to obtain sensitive information
  via the PerformCommissioningStep function in the ChipDeviceController.cpp
  component
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-200
published: '2026-09-21'
updated: '2026-09-24'
sourceUpdated: '2026-09-24T14:18:17.497'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-78806'
references:
  - url: 'https://csa-iot.org/developer-resource/specifications-download-request/'
    label: cve@mitre.org
  - url: 'https://github.com/Anonymous241429/Matter'
    label: cve@mitre.org
  - url: 'https://github.com/project-chip/connectedhomeip/'
    label: cve@mitre.org
tags:
  - nvd
  - cve.org
epss: 0.00109
epssPercentile: 0.0112
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-24T13:11:41.204650Z'
ingestedAt: '2026-09-21T21:53:57.428Z'
---

## Overview

An issue in Matter Standard Specification-Implementation gap v1.5.1 Matter Project Chip V1.5.1 allows a local attacker to obtain sensitive information via the PerformCommissioningStep function in the ChipDeviceController.cpp component

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.