{"id":"CVE-2026-62313","summary":"Incus: Project restriction `restricted.containers.privilege=isolated` bypassable by omitting `security.idmap.isolated`","details":"Incus is a system container and virtual machine manager. Prior to version 7.3.0, project-level enforcement of `restricted.containers.privilege=isolated` can be trivially bypassed, allowing a user to create a non-isolated (shared host idmap) container in a project that is configured to forbid them. The restriction only rejects an explicitly set `security.idmap.isolated=false` (or empty) and fails to enforce anything when the key is omitted entirely. Because an unset `security.idmap.isolated` defaults to `false` (non-isolation), a user simply leaves the key out and obtains exactly the container state the restriction is meant to forbid. This defeats the tenant-isolation guarantee the restriction exists to provide. Containers in the project share the host uid/gid map instead of receiving unique, non-overlapping ranges, weakening the isolation boundary between co-tenant containers and the host. Version 7.3.0 patches the issue.","aliases":["GHSA-53cg-qvg7-m8vg"],"modified":"2026-09-01T09:40:53.353559650Z","published":"2026-08-21T14:44:27.324Z","related":["openSUSE-SU-2026:11651-1"],"database_specific":{"cwe_ids":["CWE-863"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/62xxx/CVE-2026-62313.json","cna_assigner":"GitHub_M"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/62xxx/CVE-2026-62313.json"},{"type":"ADVISORY","url":"https://github.com/lxc/incus/security/advisories/GHSA-53cg-qvg7-m8vg"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-62313"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/lxc/incus","events":[{"introduced":"0"},{"fixed":"90429bf42f08b41c091e799d81465ff24b5cee2b"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"0"},{"fixed":"7.3.0"}]}}],"versions":["v7.2.0","v7.0.0","v7.1.0","v6.23.0","v6.22.0","v6.21.0","v6.20.0","v6.19.1","v6.19.0","v6.18.0","v6.17.0","v6.16.0","v6.14.0","v6.15.0","v6.13.0","v6.12.0","v6.11.0","v6.10.1","v6.10.0","v6.9.0","v6.8.0","v6.7.0","v6.6.0","v6.5.0","v6.4.0","v6.3.0","v6.2.0","v6.0.0","v6.1.0","v0.7.0","v0.6.0","v0.5.1","v0.5.0","v0.4.0","v0.3.0","v0.2.0","v0.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-62313.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L"}]}