MidnightBSD

Advisories for ultradag

CVE-2026-40583

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.

CVSS 3.x

Source Score Severity Vector Exploitability Impact
nvd@nist.gov 8.2 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H 3.9 4.2

Products Affected

Vendor Product Version
ultradag ultradag 0.1.0