CVE-2026-40583
Last modified
CVE-2026-40583 is a high-severity vulnerability rated 8.2/10 on the CVSS scale. 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.. EPSS estimates a 0.38% chance of exploitation in the next 30 days.
Description
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Red
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Ultradag | Ultradag | 0.1.0 |
References
- https://github.com/UltraDAGcom/core/security/advisories/GHSA-q8wx-2crx-c7ppExploit, Mitigation, Vendor Advisory
- https://github.com/UltraDAGcom/core/security/advisories/GHSA-q8wx-2crx-c7ppExploit, Mitigation, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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