{"id":"UBUNTU-CVE-2026-111253","details":"A flaw was found in dnf5daemon-server. Session methods on dynamically exported D-Bus session objects do not verify that the caller is the unique sender that created the session. A local attacker can modify another user's live package-management session and replace its resolved transaction plan. If the legitimate session party later authorizes execution, the root daemon may apply the attacker-chosen package operations.","modified":"2026-11-07T01:45:05.709910726Z","published":"2026-11-06T00:00:00Z","upstream":["CVE-2026-111253"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-111253"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-111253"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-111253"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2553683"},{"type":"REPORT","url":"https://github.com/rpm-software-management/dnf5/commit/46a4a8ad8d34af91ec2add6bb29e487571ea6c85"}],"affected":[{"package":{"name":"dnf","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/dnf?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.5.2-6"],"ecosystem_specific":{"binaries":[{"binary_name":"dnf","binary_version":"4.5.2-6"},{"binary_name":"dnf-data","binary_version":"4.5.2-6"},{"binary_name":"nextgen-yum4","binary_version":"4.5.2-6"},{"binary_name":"python3-dnf","binary_version":"4.5.2-6"},{"binary_name":"yum4","binary_version":"4.5.2-6"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-111253.json"}},{"package":{"name":"dnf","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/dnf?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.14.0-4","4.14.0-4.1","4.14.0-4.1ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"dnf","binary_version":"4.14.0-4.1ubuntu1"},{"binary_name":"dnf-data","binary_version":"4.14.0-4.1ubuntu1"},{"binary_name":"python3-dnf","binary_version":"4.14.0-4.1ubuntu1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-111253.json"}},{"package":{"name":"dnf","ecosystem":"Ubuntu:26.10","purl":"pkg:deb/ubuntu/dnf?arch=source&distro=stonking"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.24.0-1build1"],"ecosystem_specific":{"binaries":[{"binary_name":"dnf","binary_version":"4.24.0-1build1"},{"binary_name":"dnf-data","binary_version":"4.24.0-1build1"},{"binary_name":"python3-dnf","binary_version":"4.24.0-1build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-111253.json"}},{"package":{"name":"dnf5","ecosystem":"Ubuntu:26.10","purl":"pkg:deb/ubuntu/dnf5?arch=source&distro=stonking"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.4.0.0-1","5.4.3.0-1"],"ecosystem_specific":{"binaries":[{"binary_name":"dnf5","binary_version":"5.4.3.0-1"},{"binary_name":"dnf5-server","binary_version":"5.4.3.0-1"},{"binary_name":"libdnf5-2","binary_version":"5.4.3.0-1"},{"binary_name":"libdnf5-cli3","binary_version":"5.4.3.0-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-111253.json"}},{"package":{"name":"dnf","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/dnf?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.23.0-1","4.24.0-1","4.24.0-1build1"],"ecosystem_specific":{"binaries":[{"binary_name":"dnf","binary_version":"4.24.0-1build1"},{"binary_name":"dnf-data","binary_version":"4.24.0-1build1"},{"binary_version":"4.24.0-1build1","binary_name":"python3-dnf"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-111253.json"}},{"package":{"name":"dnf5","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/dnf5?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.4.0.0-1"],"ecosystem_specific":{"binaries":[{"binary_name":"dnf5","binary_version":"5.4.0.0-1"},{"binary_name":"dnf5-server","binary_version":"5.4.0.0-1"},{"binary_version":"5.4.0.0-1","binary_name":"libdnf5-2"},{"binary_name":"libdnf5-cli3","binary_version":"5.4.0.0-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-111253.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}