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    4 vulnerabilities by UltraDAGcom

    CVE-2026-42278 (GCVE-0-2026-42278)

    Vulnerability from nvd – Published: 2026-05-08 03:55 – Updated: 2026-05-08 23:16
    VLAI
    Title
    UltraDAG: Smart Account Spending Policy Bypass via Pockets
    Summary
    UltraDAG is a minimal DAG-BFT blockchain in Rust. Prior to commit fb6ef59, the UltraDAG StateEngine implementation of SmartTransferTx contains a critical logic flaw in its policy enforcement pipeline. When a transaction originates from a "Pocket" (a derived sub-address documented in the protocol as a way to organize funds), the engine fails to resolve the pocket's parent account before checking the spending policy. Because pockets are "virtual" addresses that exist only as entries in the pocket_to_parent map and do not have their own SmartAccountConfig entries, the check_spending_policy method defaults to an "authorized/no policy" result. This allow any user (or attacker in possession of a parent key) to instantly drain every pocket on an account, even if the parent account has a strict 24-hour vault delay or a 1 UDAG daily limit. This issue has been patched via commit fb6ef59.
    Severity
    8.8 (High)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
    SSVC
    Exploitation: poc Automatable: no Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-284 - Improper Access Control
    • CWE-639 - Authorization Bypass Through User-Controlled Key
    Assigner
    References
    Impacted products
    Vendor Product Version
    UltraDAGcom core Affected: < fb6ef59d6c1385400e7acea7ae31fc6a473c3051
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2026-40583 (GCVE-0-2026-40583)

    Vulnerability from nvd – Published: 2026-04-21 16:57 – Updated: 2026-04-21 20:37
    VLAI
    Title
    UltraDAG: SmartOp Vote Path Triggers Fatal Supply Invariant Halt
    Summary
    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.
    Severity
    8.8 (High)
    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
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-460 - Improper Cleanup on Thrown Exception
    • CWE-696 - Incorrect Behavior Order
    Assigner
    References
    Impacted products
    Vendor Product Version
    UltraDAGcom core Affected: = 0.1
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2026-42278 (GCVE-0-2026-42278)

    Vulnerability from cvelistv5 – Published: 2026-05-08 03:55 – Updated: 2026-05-08 23:16
    VLAI
    Title
    UltraDAG: Smart Account Spending Policy Bypass via Pockets
    Summary
    UltraDAG is a minimal DAG-BFT blockchain in Rust. Prior to commit fb6ef59, the UltraDAG StateEngine implementation of SmartTransferTx contains a critical logic flaw in its policy enforcement pipeline. When a transaction originates from a "Pocket" (a derived sub-address documented in the protocol as a way to organize funds), the engine fails to resolve the pocket's parent account before checking the spending policy. Because pockets are "virtual" addresses that exist only as entries in the pocket_to_parent map and do not have their own SmartAccountConfig entries, the check_spending_policy method defaults to an "authorized/no policy" result. This allow any user (or attacker in possession of a parent key) to instantly drain every pocket on an account, even if the parent account has a strict 24-hour vault delay or a 1 UDAG daily limit. This issue has been patched via commit fb6ef59.
    Severity
    8.8 (High)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
    SSVC
    Exploitation: poc Automatable: no Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-284 - Improper Access Control
    • CWE-639 - Authorization Bypass Through User-Controlled Key
    Assigner
    References
    Impacted products
    Vendor Product Version
    UltraDAGcom core Affected: < fb6ef59d6c1385400e7acea7ae31fc6a473c3051
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2026-40583 (GCVE-0-2026-40583)

    Vulnerability from cvelistv5 – Published: 2026-04-21 16:57 – Updated: 2026-04-21 20:37
    VLAI
    Title
    UltraDAG: SmartOp Vote Path Triggers Fatal Supply Invariant Halt
    Summary
    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.
    Severity
    8.8 (High)
    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
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-460 - Improper Cleanup on Thrown Exception
    • CWE-696 - Incorrect Behavior Order
    Assigner
    References
    Impacted products
    Vendor Product Version
    UltraDAGcom core Affected: = 0.1
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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              "description": "CWE-696: Incorrect Behavior Order",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-21T16:57:42.100Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/UltraDAGcom/core/security/advisories/GHSA-q8wx-2crx-c7pp",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/UltraDAGcom/core/security/advisories/GHSA-q8wx-2crx-c7pp"
        },
        {
          "name": "https://github.com/UltraDAGcom/core/commit/2f5a3a237ea519b48d71e6e3093c89f60694c7be",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/UltraDAGcom/core/commit/2f5a3a237ea519b48d71e6e3093c89f60694c7be"
        },
        {
          "name": "https://github.com/UltraDAGcom/core/commit/45bcf7064741897319b6196d3d9f9e1307093511",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/UltraDAGcom/core/commit/45bcf7064741897319b6196d3d9f9e1307093511"
        }
      ],
      "source": {
        "advisory": "GHSA-q8wx-2crx-c7pp",
        "discovery": "UNKNOWN"
      },
      "title": "UltraDAG: SmartOp Vote Path Triggers Fatal Supply Invariant Halt"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-40583",
    "datePublished": "2026-04-21T16:57:42.100Z",
    "dateReserved": "2026-04-14T13:24:29.475Z",
    "dateUpdated": "2026-04-21T20:37:16.729Z",
    "state": "PUBLISHED"
  },
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}