{"id":"UBUNTU-CVE-2026-16743","details":"A flaw was found in accountsservice. The systemd-homed code path for SetIconFile opens a user-supplied filename as root without the validation and privilege drop performed by the classic handler. A local attacker with a systemd-homed-managed account can read arbitrary files accessible to the accounts-daemon process.","modified":"2026-08-17T23:45:08.061113754Z","published":"2026-07-24T13:17:00Z","withdrawn":"2026-08-17T21:12:26Z","upstream":["CVE-2026-16743"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-16743"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-16743"},{"type":"REPORT","url":"https://gitlab.freedesktop.org/accountsservice/accountsservice/-/work_items/138"},{"type":"REPORT","url":"https://gitlab.freedesktop.org/accountsservice/accountsservice/-/merge_requests/182"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-16743"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2506381"}],"affected":[{"package":{"name":"accountsservice","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/accountsservice?arch=source&distro=esm-infra-legacy%2Ftrusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.6.34-0ubuntu6","0.6.34-0ubuntu7","0.6.35-0ubuntu1","0.6.35-0ubuntu2","0.6.35-0ubuntu3","0.6.35-0ubuntu4","0.6.35-0ubuntu5","0.6.35-0ubuntu6","0.6.35-0ubuntu7","0.6.35-0ubuntu7.1","0.6.35-0ubuntu7.2","0.6.35-0ubuntu7.3","0.6.35-0ubuntu7.3+esm2","0.6.35-0ubuntu7.3+esm3","0.6.35-0ubuntu7.3+esm4"],"ecosystem_specific":{"binaries":[{"binary_name":"accountsservice","binary_version":"0.6.35-0ubuntu7.3+esm4"},{"binary_version":"0.6.35-0ubuntu7.3+esm4","binary_name":"gir1.2-accountsservice-1.0"},{"binary_version":"0.6.35-0ubuntu7.3+esm4","binary_name":"libaccountsservice0"},{"binary_version":"0.6.35-0ubuntu7.3+esm4","binary_name":"libpam-pin"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-16743.json"}},{"package":{"name":"accountsservice","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/accountsservice?arch=source&distro=esm-infra-legacy%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.6.40-2ubuntu5","0.6.40-2ubuntu6","0.6.40-2ubuntu7","0.6.40-2ubuntu8","0.6.40-2ubuntu9","0.6.40-2ubuntu10","0.6.40-2ubuntu11","0.6.40-2ubuntu11.1","0.6.40-2ubuntu11.2","0.6.40-2ubuntu11.3","0.6.40-2ubuntu11.6","0.6.40-2ubuntu11.6+esm1","0.6.40-2ubuntu11.6+esm2"],"ecosystem_specific":{"binaries":[{"binary_name":"accountsservice","binary_version":"0.6.40-2ubuntu11.6+esm2"},{"binary_version":"0.6.40-2ubuntu11.6+esm2","binary_name":"gir1.2-accountsservice-1.0"},{"binary_name":"libaccountsservice0","binary_version":"0.6.40-2ubuntu11.6+esm2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-16743.json"}},{"package":{"name":"accountsservice","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/accountsservice?arch=source&distro=esm-infra%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.6.42-0ubuntu3","0.6.42-0ubuntu4","0.6.45-1ubuntu1","0.6.45-1ubuntu1.3","0.6.45-1ubuntu1.3+esm1","0.6.45-1ubuntu1.3+esm2"],"ecosystem_specific":{"binaries":[{"binary_name":"accountsservice","binary_version":"0.6.45-1ubuntu1.3+esm2"},{"binary_name":"gir1.2-accountsservice-1.0","binary_version":"0.6.45-1ubuntu1.3+esm2"},{"binary_name":"libaccountsservice0","binary_version":"0.6.45-1ubuntu1.3+esm2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-16743.json"}},{"package":{"name":"accountsservice","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/accountsservice?arch=source&distro=esm-infra%2Ffocal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.6.55-0ubuntu10","0.6.55-0ubuntu11","0.6.55-0ubuntu12~20.04.1","0.6.55-0ubuntu12~20.04.2","0.6.55-0ubuntu12~20.04.4","0.6.55-0ubuntu12~20.04.5","0.6.55-0ubuntu12~20.04.6","0.6.55-0ubuntu12~20.04.7","0.6.55-0ubuntu12~20.04.7+esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"accountsservice","binary_version":"0.6.55-0ubuntu12~20.04.7+esm1"},{"binary_name":"gir1.2-accountsservice-1.0","binary_version":"0.6.55-0ubuntu12~20.04.7+esm1"},{"binary_version":"0.6.55-0ubuntu12~20.04.7+esm1","binary_name":"libaccountsservice0"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-16743.json"}},{"package":{"name":"accountsservice","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/accountsservice?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.6.55-0ubuntu14","0.6.55-3ubuntu1","0.6.55-3ubuntu2","0.6.55-3ubuntu4","0.6.55-3ubuntu5","0.6.55-3ubuntu6","22.07.5-2ubuntu1","22.07.5-2ubuntu1.3","22.07.5-2ubuntu1.4","22.07.5-2ubuntu1.5","22.07.5-2ubuntu1.6"],"ecosystem_specific":{"binaries":[{"binary_name":"accountsservice","binary_version":"22.07.5-2ubuntu1.6"},{"binary_name":"gir1.2-accountsservice-1.0","binary_version":"22.07.5-2ubuntu1.6"},{"binary_name":"libaccountsservice0","binary_version":"22.07.5-2ubuntu1.6"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-16743.json"}},{"package":{"name":"accountsservice","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/accountsservice?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["23.13.9-2ubuntu2","23.13.9-2ubuntu4","23.13.9-2ubuntu6","23.13.9-2ubuntu6.1"],"ecosystem_specific":{"binaries":[{"binary_name":"accountsservice","binary_version":"23.13.9-2ubuntu6.1"},{"binary_name":"gir1.2-accountsservice-1.0","binary_version":"23.13.9-2ubuntu6.1"},{"binary_name":"libaccountsservice0","binary_version":"23.13.9-2ubuntu6.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-16743.json"}},{"package":{"name":"accountsservice","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/accountsservice?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["23.13.9-7ubuntu1","23.13.9-8ubuntu1","23.13.9-8ubuntu2","23.13.9-8ubuntu4","23.13.9-8ubuntu5","23.13.9-8ubuntu5.1","23.13.9-8ubuntu5.2"],"ecosystem_specific":{"binaries":[{"binary_name":"accountsservice","binary_version":"23.13.9-8ubuntu5.2"},{"binary_version":"23.13.9-8ubuntu5.2","binary_name":"gir1.2-accountsservice-1.0"},{"binary_name":"libaccountsservice0","binary_version":"23.13.9-8ubuntu5.2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-16743.json"}}],"schema_version":"1.9.0","severity":[{"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"}]}