---
cve: "CVE-2026-34080"
severity: "MEDIUM"
cvss: 6.8
epss: "18%"
vendor: "flatpak"
kev: false
exploited: false
published: "2026-04-07 21:17:17"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-17T05:48:45+02:00"
---

# CVE-2026-34080

> 6.8 MEDIUM · 🧪 PoC

## Beschreibung

xdg-dbus-proxy is a filtering proxy for D-Bus connections. Prior to 0.1.7, a policy parser vulnerability allows bypassing eavesdrop restrictions. The proxy checks for eavesdrop=true in policy rules but fails to handle eavesdrop ='true' (with a space before the equals sign) and similar cases. Clients can intercept D-Bus messages they should not have access to. This vulnerability is fixed in 0.1.7.

## CVSS-Vektor

```
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Lokal | good |
| AC Komplexität | Gering | bad |
| PR Privilegien | Gering | warn |
| UI Interaktion | Keine | bad |

## Patch verfügbar (OSV)

- 6a170fa77e3cbecb48f9dd2478fe5c0a119eb467 (Commit)

## Referenzen

- <https://github.com/flatpak/xdg-dbus-proxy/security/advisories/GHSA-vjp5-hjfm-7677>
- <http://www.openwall.com/lists/oss-security/2026/04/10/15>
- <https://lists.debian.org/debian-lts-announce/2026/04/msg00022.html>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-34080) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_