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TI-2026-29319 Aliases CVE-2026-40583

UltraDAG: SmartOp Vote Path Triggers Fatal Supply Invariant Halt

Priority HIGH 77CWE-460Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
None · Low · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00376 31st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
UltraDAGcomcore= 0.1—No fix listedCNA
  • core VendorUltraDAGcom Affected = 0.1 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:ultradag:ultradag:0.1.0:*:*:*:*:*:*:*0.1.0VulnerableUltradag
  • cpe:2.3:a:ultradag:ultradag:0.1.0:*:*:*:*:*:*:* Versions 0.1.0 Vulnerable ·Ultradag

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-40583

References

Exploit 1

Patch 2

  • TI-2026-30589 UltraDAG: Smart Account Spending Policy Bypass via Pockets CVSS 4.0HIGH 8.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences