{"id":"UBUNTU-CVE-2026-103433","details":"Docker Buildx Bake does not request the expected fs.read approval for certain filesystem inputs. An untrusted Bake definition can expose a readable file through a pathless secret whose ID is interpreted as a client-side pathname, or consume a local OCI image layout outside the project after entitlement validation checks a different path representation. Users who run untrusted Bake definitions are affected.","modified":"2026-10-08T12:53:37.132841952Z","published":"2026-10-05T22:16:00Z","upstream":["CVE-2026-103433"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-103433"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-103433"},{"type":"REPORT","url":"https://github.com/docker/buildx/security/advisories/GHSA-p54p-jq4x-rc28"},{"type":"REPORT","url":"https://docs.docker.com/build/bake/reference/#targetentitlements"},{"type":"REPORT","url":"https://github.com/docker/buildx"},{"type":"REPORT","url":"https://github.com/docker/buildx/releases/tag/v0.37.2"}],"affected":[{"package":{"name":"docker-buildx","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/docker-buildx?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.11.2-0ubuntu1~20.04.1","0.11.2-0ubuntu1~20.04.2","0.12.1-0ubuntu1~20.04.1","0.12.1-0ubuntu1~20.04.2","0.14.1-0ubuntu1~20.04.1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.14.1-0ubuntu1~20.04.1","binary_name":"docker-buildx"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-103433.json"}},{"package":{"name":"docker-buildx","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/docker-buildx?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.11.2-0ubuntu1~22.04.1","0.11.2-0ubuntu1~22.04.2","0.12.1-0ubuntu1~22.04.1","0.12.1-0ubuntu1~22.04.2","0.14.1-0ubuntu1~22.04.1","0.20.1-0ubuntu1~22.04.1","0.20.1-0ubuntu1~22.04.2","0.21.3-0ubuntu1~22.04.1","0.30.1-0ubuntu1~22.04.1"],"ecosystem_specific":{"binaries":[{"binary_name":"docker-buildx","binary_version":"0.30.1-0ubuntu1~22.04.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-103433.json"}},{"package":{"name":"docker-buildx","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/docker-buildx?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.11.2-0ubuntu2","0.12.1-0ubuntu1","0.12.1-0ubuntu2","0.12.1-0ubuntu2.1","0.12.1-0ubuntu2.2","0.14.1-0ubuntu1~24.04.1","0.20.1-0ubuntu1~24.04.1","0.20.1-0ubuntu1~24.04.2","0.21.3-0ubuntu1~24.04.1","0.30.1-0ubuntu1~24.04.1"],"ecosystem_specific":{"binaries":[{"binary_name":"docker-buildx","binary_version":"0.30.1-0ubuntu1~24.04.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-103433.json"}},{"package":{"name":"docker-buildx","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/docker-buildx?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.21.3-0ubuntu1","0.30.1-0ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.30.1-0ubuntu1","binary_name":"docker-buildx"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-103433.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}]}