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HIGHCVE-2026-40583Published Modified CNA GitHub_M

CVE-2026-40583: UltraDAG: SmartOp Vote Path Triggers Fatal Supply Invariant Halt

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.

Metrics

CVSS v4.0
8.8
Severity
HIGH
Fixed in
—
Affected Products
1
Affected packages
  • UltraDAGcom / core
    = 0.1
CVSS Vector
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
References