CVE-2026-34080

Name: CVE-2026-34080
Creator: NVD / NIST
Published: 2026-04-07T21:17:17.72+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.8/10EPSS 0.18%

Last modified Jun 17, 2026

CVE-2026-34080 is a medium-severity vulnerability rated 6.8/10 on the CVSS scale. xdg-dbus-proxy is a filtering proxy for D-Bus connections. Prior to 0.1.7, a policy parser vulnerability allows bypassing eavesdrop restrictions. EPSS estimates a 0.18% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

5.5/10

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

CVSS 4.0

6.8/10

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.18%

7.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-1289

Affected Software

Vendor	Product	Versions
Flatpak	Xdg-Dbus-Proxy	< 0.1.7

References

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

Timeline

Published: Apr 7, 2026
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2026-34080?

How severe is CVE-2026-34080?

CVE-2026-34080 has a CVSS score of 6.8/10 (MEDIUM severity). The EPSS model estimates a 0.18% probability of exploitation in the next 30 days.

How do I fix CVE-2026-34080?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-34080?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST