CVE Database›Document archive›CVE-2026-34080

CVE-2026-34080

xdg-dbus-proxy: xdg-dbus-proxy: Information disclosure due to policy parser vulnerability

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · April 8, 2026

Updated · June 28, 2026

Description

A flaw was found in xdg-dbus-proxy, a filtering proxy for D-Bus connections. A local client can exploit a policy parser vulnerability by crafting specific policy rules, such as including a space before the equals sign in "eavesdrop=true". This improper parsing allows the client to bypass intended eavesdrop restrictions. The consequence is information disclosure, where clients can intercept D-Bus messages that should otherwise be inaccessible.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

CVSS / CWE

CVSS 3.1 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CWE-1286 · Improper Validation of Syntactic Correctness of Input