{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "5.21.0"
              },
              {
                "fixed": "5.21.5"
              },
              {
                "introduced": "6.0"
              },
              {
                "fixed": "6.9"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "13192d6c1abbfcc9da53ce4c8451abb6da3f5f65"
            },
            {
              "fixed": "28f4061af24739ae06b678c53f155c6c02357c92"
            },
            {
              "introduced": "0"
            },
            {
              "fixed": "0dc5080834a2cde19536a849c56931f6acb067f7"
            }
          ],
          "repo": "https://github.com/canonical/lxd",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-j93m-3j9p-m5m8"
  ],
  "database_specific": {
    "cna_assigner": "canonical",
    "cwe_ids": [
      "CWE-476"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/9xxx/CVE-2026-9639.json"
  },
  "details": "Nil-pointer dereference in CreateCustomVolumeFromBackup in LXD up to version 6.8 and 5.21 on Linux allows an authenticated user with can_create_storage_volumes permissions to cause a denial of service via a specially crafted custom-volume backup tarball that omits the expires_at snapshot field.",
  "id": "CVE-2026-9639",
  "modified": "2026-07-09T03:52:29.119701212Z",
  "published": "2026-06-26T15:39:04.696Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/9xxx/CVE-2026-9639.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/canonical/lxd/security/advisories/GHSA-j93m-3j9p-m5m8"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-9639"
    },
    {
      "type": "FIX",
      "url": "https://github.com/canonical/lxd/pull/18320"
    },
    {
      "type": "FIX",
      "url": "https://github.com/canonical/lxd/pull/18390"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/canonical/lxd"
    }
  ],
  "schema_version": "1.7.5",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Authenticated Denial of Service via Malicious Backup Tarball in LXD"
}