lxd — security advisory

{
  "id": "5f3f2c31448688b2afd8893389863f569f5735bc232f4765a0a6525660499d68",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2026-63299",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2026-63299",
    "summary": "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.",
    "evidence": "osv:DEBIAN-CVE-2026-63299",
    "products": [
      {
        "name": {
          "value": "lxd",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "5.0.2+git20231211.1364ae4-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "5.0.2+git20231211.1364ae4-2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "5.0.2+git20231211.1364ae4-3",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "5.0.2+git20231211.1364ae4-4",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "5.0.2+git20231211.1364ae4-5",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "5.0.2+git20231211.1364ae4-6",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "5.0.2+git20231211.1364ae4-7",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "5.0.2+git20231211.1364ae4-8",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "5.0.2+git20231211.1364ae4-9",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "5.0.2-5",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "5.0.2-5+deb12u1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "5.0.2-5+deb12u2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "5.0.2-5+deb12u3",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "5.0.2-5+deb12u4",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "5.0.2-5+deb12u5",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "5.0.2-5+deb12u6",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "5.0.2-6",
            "evidence": "/affected/0/versions"
          }
        ]
      },
      {
        "name": {
          "value": "lxd",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "5.0.2+git20231211.1364ae4-9",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "5.0.2+git20231211.1364ae4-9+deb13u1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "5.0.2+git20231211.1364ae4-9+deb13u2",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "5.0.2+git20231211.1364ae4-9+deb13u3",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "5.0.2+git20231211.1364ae4-9+deb13u4",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "5.0.2+git20231211.1364ae4-9+deb13u5",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "5.0.2+git20231211.1364ae4-9+deb13u6",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "5.0.2+git20231211.1364ae4-9+deb13u7",
            "evidence": "/affected/1/versions"
          }
        ]
      }
    ],
    "severity": "critical",
    "structured": {
      "id": "DEBIAN-CVE-2026-63299",
      "aliases": [
        "DEBIAN-CVE-2026-63299"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "lxd",
            "purl": "pkg:deb/debian/lxd?arch=source&distro=bookworm",
            "ecosystem": "Debian:12"
          },
          "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"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-63299.json"
          },
          "ecosystem_specific": {
            "urgency": "end-of-life"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "lxd",
            "purl": "pkg:deb/debian/lxd?arch=source&distro=trixie",
            "ecosystem": "Debian:13"
          },
          "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"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-63299.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-25T09:47:29.692506019Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-63299"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2026-63299"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-63299",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 445245,
  "published_at": "2026-08-12T20:17:47.83+00:00"
}