{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:ultradag:ultradag:0.1.0:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "0.1.0"
              },
              {
                "last_affected": "0.1.0"
              }
            ],
            "source": [
              "CPE_STRING",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "3b0589a20bc3afebed861f664ceb6167a6785770"
            },
            {
              "fixed": "2f5a3a237ea519b48d71e6e3093c89f60694c7be"
            },
            {
              "fixed": "45bcf7064741897319b6196d3d9f9e1307093511"
            }
          ],
          "repo": "https://github.com/ultradagcom/core",
          "type": "GIT"
        }
      ],
      "versions": [
        "0.1.0",
        "= 0.1"
      ]
    }
  ],
  "aliases": [
    "GHSA-q8wx-2crx-c7pp"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-460",
      "CWE-696"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40583.json"
  },
  "details": "UltraDAG is a minimal DAG-BFT blockchain in Rust. In version 0.1, a non-council attacker can submit a signed SmartOp::Vote transaction that passes signature, nonce, and balance prechecks, but fails authorization only after state mutation has already occurred.",
  "id": "CVE-2026-40583",
  "modified": "2026-07-15T01:49:04.870185850Z",
  "published": "2026-04-21T16:57:42.100Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40583.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/UltraDAGcom/core/security/advisories/GHSA-q8wx-2crx-c7pp"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-40583"
    },
    {
      "type": "FIX",
      "url": "https://github.com/UltraDAGcom/core/commit/2f5a3a237ea519b48d71e6e3093c89f60694c7be"
    },
    {
      "type": "FIX",
      "url": "https://github.com/UltraDAGcom/core/commit/45bcf7064741897319b6196d3d9f9e1307093511"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/U:Red",
      "type": "CVSS_V4"
    }
  ],
  "summary": "UltraDAG: SmartOp Vote Path Triggers Fatal Supply Invariant Halt"
}