{"id":"UBUNTU-CVE-2026-55686","details":"Podman is a tool for managing OCI containers and pods. From 3.0.0 until 5.7.1, running a malicious container image where the WORKDIR path contains a symlink can create a directory or modify ownership on the host filesystem. Modified ownership is less likely to happen as that requires help from an untrusted/malicious process that mutates the host filesystem tree during dereferencing of the WORKDIR path, to trigger a race condition. This vulnerability is fixed in 5.7.1.","modified":"2026-06-29T23:19:13.897628271Z","published":"2026-06-26T17:16:00Z","upstream":["CVE-2026-55686"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-55686"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-55686"},{"type":"REPORT","url":"https://github.com/podman-container-tools/podman/security/advisories/GHSA-q6r4-3wmg-fwcq"},{"type":"REPORT","url":"https://github.com/podman-container-tools/podman/commit/d18e44e9abb3bf5b7294aa70806e1368fdddfdd0"}],"affected":[{"package":{"name":"podman","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/podman?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.4.1+ds1-1","5.4.2+ds1-1","5.4.2+ds1-2"],"ecosystem_specific":{"binaries":[{"binary_name":"podman","binary_version":"5.4.2+ds1-2"},{"binary_name":"podman-docker","binary_version":"5.4.2+ds1-2"},{"binary_version":"5.4.2+ds1-2","binary_name":"podman-remote"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-55686.json"}},{"package":{"name":"podman","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/podman?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.4.2+ds1-2","5.7.0+ds2-3","5.7.0+ds2-3build1"],"ecosystem_specific":{"binaries":[{"binary_name":"podman","binary_version":"5.7.0+ds2-3build1"},{"binary_name":"podman-docker","binary_version":"5.7.0+ds2-3build1"},{"binary_name":"podman-remote","binary_version":"5.7.0+ds2-3build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-55686.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"},{"type":"Ubuntu","score":"medium"}]}