{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "5.0.0"
              },
              {
                "fixed": "5.0.8"
              },
              {
                "introduced": "5.21.0"
              },
              {
                "fixed": "5.21.6"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "1e1349e3cbf30c1b2ce74e531d4dd0fd52c45be1"
            },
            {
              "fixed": "58b58151cfc3bd9fb0fedce26fcdd73a3e67bdb8"
            },
            {
              "introduced": "761d134ceabd306f57acfb0ca51f59b03751a5b0"
            },
            {
              "fixed": "c6146714d0cacd04b77598bac149f5db714834f6"
            }
          ],
          "repo": "https://github.com/canonical/lxd",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-v9wr-9r7q-fh4g"
  ],
  "database_specific": {
    "cna_assigner": "canonical",
    "cwe_ids": [
      "CWE-863"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/62xxx/CVE-2026-62420.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "introduced": "6.0"
          },
          {
            "fixed": "6.10"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "An authorization bypass vulnerability in LXD allows an authenticated attacker to bypass target project security restrictions during cross-project instance migrations. When moving an instance cross-project to a different cluster member via POST /1.0/instances/{name} with migration: true, project: \u003ctarget\u003e, and target: \u003cmember\u003e, the destination node skips all project restriction checks because the request arrives as an internal cluster notification. An attacker can exploit this to introduce disallowed instance configurations into a restricted project.",
  "id": "CVE-2026-62420",
  "modified": "2026-08-14T03:51:48.656558025Z",
  "published": "2026-08-12T19:12:28.097Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/62xxx/CVE-2026-62420.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/canonical/lxd/security/advisories/GHSA-v9wr-9r7q-fh4g"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-62420"
    },
    {
      "type": "FIX",
      "url": "https://github.com/canonical/lxd/pull/18605"
    },
    {
      "type": "FIX",
      "url": "https://github.com/canonical/lxd/pull/18651"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/canonical/lxd"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Cross-project cluster migration bypasses project restrictions via cluster notification flag"
}