CVE-2026-40583
HIGHUltraDAG: SmartOp Vote Path Triggers Fatal Supply Invariant Halt
Title source: cnaDescription
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.
Scores
CVSS v4
8.8
EPSS
0.0004
EPSS Percentile
12.2%
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
Details
CWE
CWE-460
CWE-696
Status
published
Products (1)
UltraDAGcom/core
= 0.1
Published
Apr 21, 2026
Tracked Since
Apr 21, 2026