{"id":"UBUNTU-CVE-2026-93676","details":"xdg-dbus-proxy incorrectly filters D-Bus broadcast messages, bypassing configured path, interface, and member restrictions. This allows a sandboxed Flatpak application to intercept broadcast signals on the D-Bus session bus and AT-SPI bus that should be restricted, potentially exposing sensitive information to unauthorized applications.","modified":"2026-09-21T21:40:59.055305739Z","published":"2026-09-21T00:00:00Z","upstream":["CVE-2026-93676"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-93676"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-93676"},{"type":"REPORT","url":"https://github.com/flatpak/xdg-dbus-proxy/security/advisories/GHSA-r7hp-698j-2h6c"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-93676"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2537014"}],"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"}]}],"versions":["0.1.1-1","0.1.2-1","0.1.2-1ubuntu0.1~esm1"],"ecosystem_specific":{"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-2026-93676.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"}]}],"versions":["0.1.2-2build1","0.1.3-1","0.1.3-1ubuntu0.1"],"ecosystem_specific":{"binaries":[{"binary_name":"xdg-dbus-proxy","binary_version":"0.1.3-1ubuntu0.1"},{"binary_version":"0.1.3-1ubuntu0.1","binary_name":"xdg-dbus-proxy-tests"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-93676.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"}]}],"versions":["0.1.5-1","0.1.5-1build1","0.1.5-1build2","0.1.5-1ubuntu0.1","0.1.5-1ubuntu0.2"],"ecosystem_specific":{"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-2026-93676.json"}},{"package":{"name":"xdg-dbus-proxy","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/xdg-dbus-proxy?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.1.6-1","0.1.6-2","0.1.7-1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.1.7-1","binary_name":"xdg-dbus-proxy"},{"binary_version":"0.1.7-1","binary_name":"xdg-dbus-proxy-tests"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-93676.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]}