---
cve: "CVE-2026-34209"
severity: "HIGH"
cvss: 7.5
epss: "0.4%"
vendor: "wevm"
kev: false
exploited: false
published: "2026-03-31 15:16:18"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-23T07:19:22+02:00"
---

# CVE-2026-34209

> 7.5 HIGH · 🧪 PoC

## Beschreibung

mppx is a TypeScript interface for machine payments protocol. Prior to version 0.4.11, the tempo/session cooperative close handler validated the close voucher amount using "

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- 8ce9f56b6c75c807ecd758563d94f2a698fb5335 (Commit)
- 94088246ee18f21b5d6be40d9e7a464f5a280bfb (Commit)

## Referenzen

- <https://github.com/wevm/mppx/security/advisories/GHSA-mv9j-8jvg-j8mr>
- <https://github.com/wevm/mppx/commit/94088246ee18f21b5d6be40d9e7a464f5a280bfb>
- <https://github.com/wevm/mppx/releases/tag/mppx@0.4.11>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-34209) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_