{"id":"UBUNTU-CVE-2026-107466","details":"A flaw was found in flatpak-builder. This vulnerability allows an attacker to cause information disclosure by convincing a user or continuous integration (CI) system to process a crafted build manifest. By specifying local file Uniform Resource Identifiers (URIs) within source download definitions, the builder bypasses directory confinement checks. As a result, sensitive host files accessible to the build process can be read and incorporated into the build artifacts.","modified":"2026-10-08T19:47:05.743067016Z","published":"2026-10-08T00:00:00Z","upstream":["CVE-2026-107466"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-107466"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-107466"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-107466"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2471600"}],"affected":[{"package":{"name":"flatpak-builder","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/flatpak-builder?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.10.1-1","0.10.4-1","0.10.5-1","0.10.6-1","0.10.6-2","0.10.7-1","0.10.8-1","0.10.9-1","0.10.9-1ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.10.9-1ubuntu1","binary_name":"flatpak-builder"},{"binary_version":"0.10.9-1ubuntu1","binary_name":"flatpak-builder-tests"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-107466.json"}},{"package":{"name":"flatpak-builder","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/flatpak-builder?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.8-2","1.0.9-1","1.0.10-1"],"ecosystem_specific":{"binaries":[{"binary_name":"flatpak-builder","binary_version":"1.0.10-1"},{"binary_name":"flatpak-builder-tests","binary_version":"1.0.10-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-107466.json"}},{"package":{"name":"flatpak-builder","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/flatpak-builder?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.14-2","1.2.0-1","1.2.1-1","1.2.2-1","1.2.2-2"],"ecosystem_specific":{"binaries":[{"binary_version":"1.2.2-2","binary_name":"flatpak-builder"},{"binary_name":"flatpak-builder-tests","binary_version":"1.2.2-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-107466.json"}},{"package":{"name":"flatpak-builder","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/flatpak-builder?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2.3-1","1.4.0-1","1.4.1-1","1.4.2-1build1","1.4.2-1build2"],"ecosystem_specific":{"binaries":[{"binary_name":"flatpak-builder","binary_version":"1.4.2-1build2"},{"binary_name":"flatpak-builder-tests","binary_version":"1.4.2-1build2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-107466.json"}},{"package":{"name":"flatpak-builder","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/flatpak-builder?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.6-2","1.4.7-1","1.4.8-1"],"ecosystem_specific":{"binaries":[{"binary_name":"flatpak-builder","binary_version":"1.4.8-1"},{"binary_name":"flatpak-builder-tests","binary_version":"1.4.8-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-107466.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N"},{"type":"Ubuntu","score":"medium"}]}