UBUNTU-CVE-2026-34080

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Source
https://ubuntu.com/security/CVE-2026-34080
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34080.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-34080
Upstream
Downstream
Related
Published
2026-04-07T21:17:00Z
Modified
2026-05-27T16:59:13Z
Severity
  • 6.8 (Medium) CVSS_V4 - 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 CVSS Calculator
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

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.

References

Affected packages

Ubuntu:Pro:20.04:LTS / xdg-dbus-proxy

Package

Name
xdg-dbus-proxy
Purl
pkg:deb/ubuntu/xdg-dbus-proxy?arch=source&distro=esm-infra%2Ffocal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0.1.2-1ubuntu0.1~esm1

Affected versions

0.*
0.1.1-1
0.1.2-1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "xdg-dbus-proxy",
            "binary_version": "0.1.2-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "xdg-dbus-proxy-tests",
            "binary_version": "0.1.2-1ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34080.json"

Ubuntu:22.04:LTS / xdg-dbus-proxy

Package

Name
xdg-dbus-proxy
Purl
pkg:deb/ubuntu/xdg-dbus-proxy?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0.1.3-1ubuntu0.1

Affected versions

0.*
0.1.2-2build1
0.1.3-1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "xdg-dbus-proxy",
            "binary_version": "0.1.3-1ubuntu0.1"
        },
        {
            "binary_name": "xdg-dbus-proxy-tests",
            "binary_version": "0.1.3-1ubuntu0.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34080.json"

Ubuntu:24.04:LTS / xdg-dbus-proxy

Package

Name
xdg-dbus-proxy
Purl
pkg:deb/ubuntu/xdg-dbus-proxy?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0.1.5-1ubuntu0.2

Affected versions

0.*
0.1.5-1
0.1.5-1build1
0.1.5-1build2
0.1.5-1ubuntu0.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "xdg-dbus-proxy",
            "binary_version": "0.1.5-1ubuntu0.2"
        },
        {
            "binary_name": "xdg-dbus-proxy-tests",
            "binary_version": "0.1.5-1ubuntu0.2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34080.json"

Ubuntu:25.10 / xdg-dbus-proxy

Package

Name
xdg-dbus-proxy
Purl
pkg:deb/ubuntu/xdg-dbus-proxy?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0.1.6-1ubuntu0.1

Affected versions

0.*
0.1.6-1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "xdg-dbus-proxy",
            "binary_version": "0.1.6-1ubuntu0.1"
        },
        {
            "binary_name": "xdg-dbus-proxy-tests",
            "binary_version": "0.1.6-1ubuntu0.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34080.json"