CVE-2026-40583HIGH 8.2EPSS p29.3%

CVE-2026-40583CVE-2026-40583

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.

Scoring

CVSS 3.18.2 (HIGH)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
EPSS0.38% probability of exploitation · percentile 29.3% · 2026-06-19T12:03:05Z
Published2026-04-21
Last modified2026-04-27

Underlying weaknesses· 2

CWE-460CWE-696

References

  1. https://github.com/UltraDAGcom/core/commit/2f5a3a237ea519b48d71e6e3093c89f60694c7be
  2. https://github.com/UltraDAGcom/core/commit/45bcf7064741897319b6196d3d9f9e1307093511
  3. https://github.com/UltraDAGcom/core/security/advisories/GHSA-q8wx-2crx-c7pp
  4. https://github.com/UltraDAGcom/core/security/advisories/GHSA-q8wx-2crx-c7pp

2

TypeTargetConfidenceTier
WeaknessImproper Cleanup on Thrown Exceptioncwe-4600%live
WeaknessIncorrect Behavior Ordercwe-6960%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.