{"id":"CVE-2026-107466","aliases":["DEBIAN-CVE-2026-107466","EUVD-2026-94800","GHSA-m6mj-r236-h4v7","UBUNTU-CVE-2026-107466"],"status":"published","title":"Flatpak-builder: local file exfiltration via `file","description":"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.","severity":{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00191,"percentile":0.08889,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-22"],"published":"2026-10-08T07:54:03Z","modified":"2026-11-05T15:55:22Z","fixes":[{"ecosystem":"Debian:14","package":"flatpak-builder","fixed_in":["1.4.11-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"flatpak-builder","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2.3-1","1.3.1-1","1.3.3-1","1.3.4-1","1.3.5-1","1.4.0-1","1.4.1-1","1.4.10-1","1.4.11-1","1.4.12-1","1.4.12-2","1.4.2-1","1.4.4-1","1.4.4-1~bpo12+1","1.4.4-2","1.4.5-1","1.4.6-1","1.4.6-2","1.4.7-1","1.4.8-1","1.4.9-1"]},{"source":"osv","ecosystem":"Debian:13","package":"flatpak-builder","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.10-1","1.4.11-1","1.4.12-1","1.4.12-2","1.4.4-2","1.4.5-1","1.4.6-1","1.4.6-2","1.4.7-1","1.4.8-1","1.4.9-1"]},{"source":"osv","ecosystem":"Debian:14","package":"flatpak-builder","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.11-1"}]}],"versions":["1.4.10-1","1.4.4-2","1.4.5-1","1.4.6-1","1.4.6-2","1.4.7-1","1.4.8-1","1.4.9-1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"flatpak-builder","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"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"flatpak-builder","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.8-2","1.0.9-1","1.0.10-1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"flatpak-builder","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"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"flatpak-builder","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"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"flatpak-builder","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.8-1","1.4.9-1","1.4.10-1","1.4.11-1","1.4.12-1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"flatpak-builder","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.6-2","1.4.7-1","1.4.8-1"]}],"products":[{"vendor":"red hat","product":"red hat enterprise linux 10"},{"vendor":"red hat","product":"red hat enterprise linux 8"},{"vendor":"red hat","product":"red hat enterprise linux 9"}],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-107466","tags":["vdb-entry","x_refsource_REDHAT","report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2471600","tags":["issue-tracking","x_refsource_REDHAT","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-107466"},{"url":"https://github.com/advisories/GHSA-m6mj-r236-h4v7"},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-107466","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-107466","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-107466","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-107466","title":"Flatpak-builder: local file exfiltration via `file","description":"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.","status":"published","published":"2026-10-08T07:54:03.37Z","modified":"2026-11-05T15:55:22.957Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-22"],"updated_at":"2026-11-05T16:36:34.343037Z"}],"euvd":[{"id":"EUVD-2026-94800","description":"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.","status":"published","published":"2026-10-08T07:54:03Z","modified":"2026-11-05T15:55:22Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N","level":"medium"}],"updated_at":"2026-11-05T18:00:58.868629Z"}],"ghsa":[{"id":"GHSA-m6mj-r236-h4v7","title":"A flaw was found in flatpak-builder. This vulnerability allows an attacker to cause information...","description":"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.","status":"published","published":"2026-10-08T09:31:55Z","modified":"2026-10-08T09:32:03Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N","level":"medium"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T15:12:55.932488Z"}],"nvd":[{"id":"CVE-2026-107466","description":"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.","status":"published","published":"2026-10-08T08:16:34.193Z","modified":"2026-11-05T16:17:31.43Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-22"],"updated_at":"2026-11-05T19:56:00.556424Z"}],"osv":[{"id":"DEBIAN-CVE-2026-107466","description":"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.","status":"published","published":"2026-10-08T08:16:34.193Z","modified":"2026-10-09T12:00:14.881702918Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:45:49.381767Z"},{"id":"UBUNTU-CVE-2026-107466","description":"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.","status":"published","published":"2026-10-08T08:16:00Z","modified":"2026-10-17T12:58:01.544625639Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T16:55:59.130573Z"}]}}