{"id":"CVE-2026-63299","aliases":["DEBIAN-CVE-2026-63299","EUVD-2026-57418","GHSA-5h78-p252-989h","UBUNTU-CVE-2026-63299","openSUSE-SU-2026:21788-1"],"status":"published","title":"Storage volume cross-project move and snapshot restore bypass project disk limits","description":"An authorization bypass vulnerability in LXD allows an authenticated user to bypass project-level disk and volume limits. Two related code paths fail to verify resource limits during volume operations: the storagePoolVolumeTypePostMove function omits the limits.AllowVolumeCreation check before moving a volume across projects, and volume snapshot restore operations skip the AllowVolumeUpdate check when the configuration is nil (Config == nil). An attacker can exploit these flaws to allocate storage resources that exceed the administrative limits configured for a project.","severity":{"version":"3.1","score":8.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00588,"percentile":0.4845,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-770"],"published":"2026-08-12T19:17:07Z","modified":"2026-10-28T02:31:08Z","affected":[{"source":"osv","ecosystem":"Debian:12","package":"lxd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.0.2+git20231211.1364ae4-1","5.0.2+git20231211.1364ae4-2","5.0.2+git20231211.1364ae4-3","5.0.2+git20231211.1364ae4-4","5.0.2+git20231211.1364ae4-5","5.0.2+git20231211.1364ae4-6","5.0.2+git20231211.1364ae4-7","5.0.2+git20231211.1364ae4-8","5.0.2+git20231211.1364ae4-9","5.0.2-5","5.0.2-5+deb12u1","5.0.2-5+deb12u2","5.0.2-5+deb12u3","5.0.2-5+deb12u4","5.0.2-5+deb12u5","5.0.2-5+deb12u6","5.0.2-6"]},{"source":"osv","ecosystem":"Debian:13","package":"lxd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.0.2+git20231211.1364ae4-9","5.0.2+git20231211.1364ae4-9+deb13u1","5.0.2+git20231211.1364ae4-9+deb13u2","5.0.2+git20231211.1364ae4-9+deb13u3","5.0.2+git20231211.1364ae4-9+deb13u4","5.0.2+git20231211.1364ae4-9+deb13u5","5.0.2+git20231211.1364ae4-9+deb13u6","5.0.2+git20231211.1364ae4-9+deb13u7"]},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"lxd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.20-0ubuntu4","0.21-0ubuntu3","0.21-0ubuntu5","0.22-0ubuntu1","0.22-0ubuntu2","0.23-0ubuntu1","0.23-0ubuntu2","0.23-0ubuntu3","0.24-0ubuntu2","0.24-0ubuntu3","0.24-0ubuntu4","0.25-0ubuntu1","0.26-0ubuntu2","0.26-0ubuntu3","0.27-0ubuntu1","0.27-0ubuntu2","2.0.0~beta1-0ubuntu3","2.0.0~beta1-0ubuntu4","2.0.0~beta2-0ubuntu1","2.0.0~beta2-0ubuntu2","2.0.0~beta3-0ubuntu1","2.0.0~beta3-0ubuntu2","2.0.0~beta3-0ubuntu3","2.0.0~beta3-0ubuntu4","2.0.0~beta4-0ubuntu1","2.0.0~beta4-0ubuntu2","2.0.0~beta4-0ubuntu3","2.0.0~beta4-0ubuntu4","2.0.0~beta4-0ubuntu5","2.0.0~beta4-0ubuntu6","2.0.0~beta4-0ubuntu7","2.0.0~rc1-0ubuntu1","2.0.0~rc1-0ubuntu2","2.0.0~rc1-0ubuntu3","2.0.0~rc2-0ubuntu2","2.0.0~rc2-0ubuntu3","2.0.0~rc3-0ubuntu1","2.0.0~rc3-0ubuntu2","2.0.0~rc3-0ubuntu3","2.0.0~rc3-0ubuntu4","2.0.0~rc4-0ubuntu1","2.0.0~rc5-0ubuntu1","2.0.0~rc6-0ubuntu1","2.0.0~rc6-0ubuntu2","2.0.0~rc7-0ubuntu1","2.0.0~rc7-0ubuntu2","2.0.0~rc8-0ubuntu1","2.0.0~rc8-0ubuntu2","2.0.0~rc8-0ubuntu3","2.0.0~rc8-0ubuntu5","2.0.0~rc8-0ubuntu6","2.0.0~rc8-0ubuntu7","2.0.0~rc9-0ubuntu2","2.0.0~rc9-0ubuntu3","2.0.0~rc9-0ubuntu4","2.0.0~rc9-0ubuntu5","2.0.0-0ubuntu1","2.0.0-0ubuntu2","2.0.0-0ubuntu3","2.0.0-0ubuntu4","2.0.1-0ubuntu1~16.04.1","2.0.2-0ubuntu1~16.04.1","2.0.3-0ubuntu1~ubuntu16.04.2","2.0.4-0ubuntu1~ubuntu16.04.1","2.0.5-0ubuntu1~ubuntu16.04.1","2.0.8-0ubuntu1~ubuntu16.04.1","2.0.8-0ubuntu1~ubuntu16.04.2","2.0.9-0ubuntu1~16.04.1","2.0.9-0ubuntu1~16.04.2","2.0.10-0ubuntu1~16.04.1","2.0.10-0ubuntu1~16.04.2","2.0.11-0ubuntu1~16.04.2","2.0.11-0ubuntu1~16.04.4","2.0.11-0ubuntu1~16.04.4+esm1","2.0.11-0ubuntu1~16.04.4+esm2","2.0.11-0ubuntu1~16.04.4+esm3"]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"lxd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.18-0ubuntu6","2.19-0ubuntu1","2.20-0ubuntu3","2.20-0ubuntu4","2.21-0ubuntu1","2.21-0ubuntu2","2.21-0ubuntu3","2.21-0ubuntu4","3.0.0~beta2-0ubuntu3","3.0.0~beta3-0ubuntu3","3.0.0~beta5-0ubuntu2","3.0.0~beta7-0ubuntu1","3.0.0-0ubuntu1","3.0.0-0ubuntu2","3.0.0-0ubuntu3","3.0.0-0ubuntu4","3.0.1-0ubuntu1~18.04.1","3.0.2-0ubuntu1~18.04.1","3.0.3-0ubuntu1~18.04.1","3.0.3-0ubuntu1~18.04.2","3.0.3-0ubuntu1~18.04.2+esm1","3.0.3-0ubuntu1~18.04.2+esm2","3.0.3-0ubuntu1~18.04.2+esm3"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"lxd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:0.7","1:0.8","1:0.9","1:0.10"]},{"source":"osv","ecosystem":"openSUSE:Leap 16.0","package":"lxd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.21.6-bp160.1.1"}]}],"bundled":9}],"products":[{"vendor":"canonical","product":"lxd"}],"references":[{"url":"https://github.com/canonical/lxd/security/advisories/GHSA-5h78-p252-989h","tags":["vdb-entry","vendor-advisory","Vendor Advisory","Exploit","Mitigation","advisory","report"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63299.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-63299","tags":["advisory"]},{"url":"https://github.com/canonical/lxd","tags":["package"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-63299","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-63299","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-63299","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1223794","tags":["report"]},{"url":"https://bugzilla.suse.com/1274936","tags":["report"]},{"url":"https://bugzilla.suse.com/1274937","tags":["report"]},{"url":"https://bugzilla.suse.com/1274954","tags":["report"]},{"url":"https://bugzilla.suse.com/1274961","tags":["report"]},{"url":"https://bugzilla.suse.com/1274963","tags":["report"]},{"url":"https://bugzilla.suse.com/1275084","tags":["report"]},{"url":"https://bugzilla.suse.com/1275085","tags":["report"]},{"url":"https://bugzilla.suse.com/1275090","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2023-46565","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-62420","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-63293","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-63295","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-63296","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-63297","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-63298","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-63299","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-66898","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2026-63299","title":"Storage volume cross-project move and snapshot restore bypass project disk limits","description":"An authorization bypass vulnerability in LXD allows an authenticated user to bypass project-level disk and volume limits. Two related code paths fail to verify resource limits during volume operations: the storagePoolVolumeTypePostMove function omits the limits.AllowVolumeCreation check before moving a volume across projects, and volume snapshot restore operations skip the AllowVolumeUpdate check when the configuration is nil (Config == nil). An attacker can exploit these flaws to allocate storage resources that exceed the administrative limits configured for a project.","status":"published","published":"2026-08-12T19:17:07.418Z","modified":"2026-08-12T19:26:28.11Z","cvss":[{"version":"3.1","score":8.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T14:19:55.914391Z"}],"euvd":[{"id":"EUVD-2026-57418","description":"An authorization bypass vulnerability in LXD allows an authenticated user to bypass project-level disk and volume limits. Two related code paths fail to verify resource limits during volume operations: the storagePoolVolumeTypePostMove function omits the limits.AllowVolumeCreation check before moving a volume across projects, and volume snapshot restore operations skip the AllowVolumeUpdate check when the configuration is nil (Config == nil). An attacker can exploit these flaws to allocate storage resources that exceed the administrative limits configured for a project.","status":"published","published":"2026-08-12T19:17:07Z","modified":"2026-08-12T19:26:28Z","cvss":[{"version":"3.1","score":8.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T18:01:57.602969Z"}],"nvd":[{"id":"CVE-2026-63299","description":"An authorization bypass vulnerability in LXD allows an authenticated user to bypass project-level disk and volume limits. Two related code paths fail to verify resource limits during volume operations: the storagePoolVolumeTypePostMove function omits the limits.AllowVolumeCreation check before moving a volume across projects, and volume snapshot restore operations skip the AllowVolumeUpdate check when the configuration is nil (Config == nil). An attacker can exploit these flaws to allocate storage resources that exceed the administrative limits configured for a project.","status":"published","published":"2026-08-12T20:17:47.83Z","modified":"2026-10-24T16:10:00.153Z","cvss":[{"version":"3.1","score":9.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T14:12:37.217486Z"}],"osv":[{"id":"CVE-2026-63299","title":"Storage volume cross-project move and snapshot restore bypass project disk limits","description":"An authorization bypass vulnerability in LXD allows an authenticated user to bypass project-level disk and volume limits. Two related code paths fail to verify resource limits during volume operations: the storagePoolVolumeTypePostMove function omits the limits.AllowVolumeCreation check before moving a volume across projects, and volume snapshot restore operations skip the AllowVolumeUpdate check when the configuration is nil (Config == nil). An attacker can exploit these flaws to allocate storage resources that exceed the administrative limits configured for a project.","status":"published","published":"2026-08-12T19:17:07.418Z","modified":"2026-10-28T02:31:08.652205591Z","cvss":[{"version":"3.1","score":9.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T15:45:13.306117Z"},{"id":"DEBIAN-CVE-2026-63299","description":"An authorization bypass vulnerability in LXD allows an authenticated user to bypass project-level disk and volume limits. Two related code paths fail to verify resource limits during volume operations: the storagePoolVolumeTypePostMove function omits the limits.AllowVolumeCreation check before moving a volume across projects, and volume snapshot restore operations skip the AllowVolumeUpdate check when the configuration is nil (Config == nil). An attacker can exploit these flaws to allocate storage resources that exceed the administrative limits configured for a project.","status":"published","published":"2026-08-12T20:17:47.83Z","modified":"2026-10-25T09:47:29.692506019Z","cvss":[{"version":"3.1","score":9.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:45:57.932517Z"},{"id":"UBUNTU-CVE-2026-63299","description":"An authorization bypass vulnerability in LXD allows an authenticated user to bypass project-level disk and volume limits. Two related code paths fail to verify resource limits during volume operations: the storagePoolVolumeTypePostMove function omits the limits.AllowVolumeCreation check before moving a volume across projects, and volume snapshot restore operations skip the AllowVolumeUpdate check when the configuration is nil (Config == nil). An attacker can exploit these flaws to allocate storage resources that exceed the administrative limits configured for a project.","status":"published","published":"2026-08-12T20:17:00Z","modified":"2026-08-19T11:06:33Z","cvss":[{"version":"3.1","score":9.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T16:56:43.630667Z"},{"id":"openSUSE-SU-2026:21788-1","title":"Security update for lxd","description":"This update for lxd fixes the following issues:\n\nChanges in lxd:\n\n- update to 5.21.6:\n  * bsc#1274937, CVE-2026-63293, bsc#1274936, CVE-2026-62420,\n    bsc#1274954, CVE-2026-63295, bsc#1274963, CVE-2026-63297,\n    bsc#1274961, CVE-2026-63296, bsc#1275085, CVE-2026-63299,\n    bsc#1275084, CVE-2026-63298, bsc#1275090, CVE-2026-66898\n  * https://canonical.com/lxd/docs/latest/reference/release-\n    notes/5.21/release-notes-5.21.6/\n  * https://canonical.com/lxd/docs/latest/reference/release-\n    notes/5.21/release-notes-5.21.5/\n  * https://discourse.ubuntu.com/t/lxd-5-21-4-lts-has-been-\n    released/66602\n  * https://discourse.ubuntu.com/t/lxd-5-21-3-lts-has-been-\n    released/53768\n  * https://discourse.ubuntu.com/t/lxd-5-21-2-has-been-\n    released/46443\n\n- Migrate to single LXD/Incus OVMF handling (lxd-ovmf-setup):\n  * Allow aarch64 arch_vm_support\n  * Remove OVMF symlinks\n  * Require the new lxd-ovmf-setup packages\n","status":"published","published":"2026-09-02T12:35:45Z","modified":"2026-09-09T18:23:15.579056028Z","updated_at":"2026-11-02T16:58:42.426393Z"}]}}