{"id":"UBUNTU-CVE-2026-34080","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.","modified":"2026-05-27T16:59:13.728322903Z","published":"2026-04-07T21:17:00Z","related":["USN-8167-1","USN-8167-2"],"upstream":["CVE-2026-34080"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-34080"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-34080"},{"type":"REPORT","url":"https://github.com/flatpak/xdg-dbus-proxy/security/advisories/GHSA-vjp5-hjfm-7677"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8167-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8167-2"}],"affected":[{"package":{"name":"xdg-dbus-proxy","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/xdg-dbus-proxy?arch=source&distro=esm-infra%2Ffocal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.1.2-1ubuntu0.1~esm1"}]}],"versions":["0.1.1-1","0.1.2-1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_version":"0.1.2-1ubuntu0.1~esm1","binary_name":"xdg-dbus-proxy"},{"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"}},{"package":{"name":"xdg-dbus-proxy","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/xdg-dbus-proxy?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.1.3-1ubuntu0.1"}]}],"versions":["0.1.2-2build1","0.1.3-1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.1.3-1ubuntu0.1","binary_name":"xdg-dbus-proxy"},{"binary_name":"xdg-dbus-proxy-tests","binary_version":"0.1.3-1ubuntu0.1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34080.json"}},{"package":{"name":"xdg-dbus-proxy","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/xdg-dbus-proxy?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.1.5-1ubuntu0.2"}]}],"versions":["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_version":"0.1.5-1ubuntu0.2","binary_name":"xdg-dbus-proxy"},{"binary_version":"0.1.5-1ubuntu0.2","binary_name":"xdg-dbus-proxy-tests"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34080.json"}},{"package":{"name":"xdg-dbus-proxy","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/xdg-dbus-proxy?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.1.6-1ubuntu0.1"}]}],"versions":["0.1.6-1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"0.1.6-1ubuntu0.1","binary_name":"xdg-dbus-proxy"},{"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"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"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"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]}