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2 vulnerabilities by UltraDAGcom

CVE-2026-42278 (GCVE-0-2026-42278)

Vulnerability from cvelistv5 – Published: 2026-05-08 03:55 – Updated: 2026-05-08 23:16
VLAI?
Title
UltraDAG: Smart Account Spending Policy Bypass via Pockets
Summary
UltraDAG is a minimal DAG-BFT blockchain in Rust. Prior to commit fb6ef59, the UltraDAG StateEngine implementation of SmartTransferTx contains a critical logic flaw in its policy enforcement pipeline. When a transaction originates from a "Pocket" (a derived sub-address documented in the protocol as a way to organize funds), the engine fails to resolve the pocket's parent account before checking the spending policy. Because pockets are "virtual" addresses that exist only as entries in the pocket_to_parent map and do not have their own SmartAccountConfig entries, the check_spending_policy method defaults to an "authorized/no policy" result. This allow any user (or attacker in possession of a parent key) to instantly drain every pocket on an account, even if the parent account has a strict 24-hour vault delay or a 1 UDAG daily limit. This issue has been patched via commit fb6ef59.
Severity ?
8.8 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
CWE
  • CWE-284 - Improper Access Control
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
Impacted products
Vendor Product Version
UltraDAGcom core Affected: < fb6ef59d6c1385400e7acea7ae31fc6a473c3051
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Show details on NVD website
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CVE-2026-40583 (GCVE-0-2026-40583)

Vulnerability from cvelistv5 – Published: 2026-04-21 16:57 – Updated: 2026-04-21 20:37
VLAI?
Title
UltraDAG: SmartOp Vote Path Triggers Fatal Supply Invariant Halt
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.
Severity ?
8.8 (High)
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
CWE
  • CWE-460 - Improper Cleanup on Thrown Exception
  • CWE-696 - Incorrect Behavior Order
Assigner
References
Impacted products
Vendor Product Version
UltraDAGcom core Affected: = 0.1
Create a notification for this product.
Show details on NVD website
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