CVE-2026-40583

Summary

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.

Affected Software

Weaknesses

• CWE-460: CWE-460: Improper Cleanup on Thrown Exception
• CWE-696: CWE-696: Incorrect Behavior Order

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: yes
  • Technical Impact: partial

Additional References

• https://github.com/UltraDAGcom/core/security/advisories/GHSA-q8wx-2crx-c7pp

References

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

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