CVE-2026-34080
Publication date 7 April 2026
Last updated 6 June 2026
Ubuntu priority
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.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| xdg-dbus-proxy | 26.04 LTS resolute |
Not affected
|
| 25.10 questing |
Fixed 0.1.6-1ubuntu0.1
|
|
| 24.04 LTS noble |
Fixed 0.1.5-1ubuntu0.2
|
|
| 22.04 LTS jammy |
Fixed 0.1.3-1ubuntu0.1
|
|
| 20.04 LTS focal |
Fixed 0.1.2-1ubuntu0.1~esm1
|
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CVSS version:
Base score
6.8 · Medium
Vector: 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
Base score
5.5 · Medium
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
References
Related Ubuntu Security Notices (USN)
- USN-8167-1
- xdg-dbus-proxy vulnerability
- 13 April 2026
- USN-8167-2
- xdg-dbus-proxy vulnerability
- 26 May 2026