---
id: CVE-2026-43980
title: Malla is a web analyzer for Meshtastic networks based on MQTT data
summary: >-
  Malla is a web analyzer for Meshtastic networks based on MQTT data. Prior to
  commit 4086e2b5f61615a813b70b25bc76095083552135, code names (long_name,
  short_name) received via MQTT are stored in SQLite without sanitization and
  rendered int…
severity: medium
cvss: 6.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L'
cwe:
  - CWE-79
vendor: malla
product: malla
affected:
  - malla <= 0.1.7
published: '2026-08-21'
updated: '2026-09-09'
sourceUpdated: '2026-09-09T21:06:39.057'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-43980'
references:
  - url: >-
      https://github.com/pypa/advisory-database/tree/main/vulns/malla/PYSEC-2026-2618.yaml
    label: security-advisories@github.com
  - url: >-
      https://github.com/zenitraM/malla/commit/4086e2b5f61615a813b70b25bc76095083552135
    label: security-advisories@github.com
  - url: 'https://github.com/zenitraM/malla/security/advisories/GHSA-ch57-39q2-4crm'
    label: security-advisories@github.com
  - url: 'https://github.com/zenitraM/malla/security/advisories/GHSA-ch57-39q2-4crm'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
  - url: 'https://github.com/zenitraM/malla'
tags:
  - nvd
  - osv
  - pip
epss: 0.00226
epssPercentile: 0.13519
aliases:
  - GHSA-ch57-39q2-4crm
  - PYSEC-2026-2618
ecosystem: pip
ingestedAt: '2026-07-13T18:57:56.471Z'
---

## Overview

Malla is a web analyzer for Meshtastic networks based on MQTT data. Prior to commit 4086e2b5f61615a813b70b25bc76095083552135, code names (long_name, short_name) received via MQTT are stored in SQLite without sanitization and rendered into the DOM without escaping. Any participant on a public Meshtastic MQTT broker can set a malicious node name that executes JavaScript in the browser of every Malla dashboard visitor. Commit 4086e2b5f61615a813b70b25bc76095083552135 fixes the issue.

## Remediation

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

## Package advisory (CVE-2026-43980)

Affected packages:

- `malla <= 0.1.7`

Source: https://osv.dev/vulnerability/GHSA-ch57-39q2-4crm