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.
Scoring
- Severity
- HIGH
- CVSS base score
- 8.8
- 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
- EPSS probability
- 0.38%
- CWE
- CWE-460, CWE-696
- Published
- 2026-04-21
- Last modified
- 2026-04-21
Affected products
- UltraDAGcom core
Weakness type
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