---
cve: "CVE-2026-43980"
severity: "MEDIUM"
cvss: 6.3
epss: "6.7%"
vendor: "zenitraM"
kev: false
exploited: false
published: "2026-08-21 22:16:37"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-02T15:33:55+02:00"
---

# CVE-2026-43980

> 6.3 MEDIUM · 🧪 PoC

## Beschreibung

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.

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Erforderlich | good |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Gering | warn |
| I Integrität | Gering | warn |
| A Verfügbarkeit | Gering | warn |

## Patch verfügbar (OSV)

- 4086e2b5f61615a813b70b25bc76095083552135 (Commit)

## Referenzen

- <https://github.com/zenitraM/malla/security/advisories/GHSA-ch57-39q2-4crm>
- <https://github.com/zenitraM/malla/commit/4086e2b5f61615a813b70b25bc76095083552135>
- <https://github.com/pypa/advisory-database/tree/main/vulns/malla/PYSEC-2026-2618.yaml>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-43980) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_