---
id: CVE-2026-15318
title: A weakness has been identified in Sipeed PicoClaw up to 0.2.9
summary: >-
  A weakness has been identified in Sipeed PicoClaw up to 0.2.9. Affected by
  this issue is some unknown functionality of the file pkg/channels/mqtt/mqtt.go
  of the component MQTT Channel Handler. This manipulation of the argument
  client_id …
severity: medium
cvss: 6.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L'
cwe:
  - CWE-285
  - CWE-863
published: '2026-07-10'
updated: '2026-07-10'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-15318'
references:
  - url: 'https://github.com/sipeed/picoclaw/'
    label: cna@vuldb.com
  - url: 'https://github.com/sipeed/picoclaw/issues/3068'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/cve/CVE-2026-15318'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/submit/852879'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/377258'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/377258/cti'
    label: cna@vuldb.com
tags:
  - nvd
epss: 0.00366
epssPercentile: 0.27659
ingestedAt: '2026-07-11T20:15:25.826Z'
---

## Overview

A weakness has been identified in Sipeed PicoClaw up to 0.2.9. Affected by this issue is some unknown functionality of the file pkg/channels/mqtt/mqtt.go of the component MQTT Channel Handler. This manipulation of the argument client_id causes incorrect authorization. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks. The reported GitHub issue was closed automatically due to inactivity.

## Remediation

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