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    2 vulnerabilities by ultradag

    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-2026-40583 (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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