CVE-2026-42278: CWE-284: Improper Access Control in UltraDAGcom core
CVE-2026-42278 is a high-severity vulnerability in the UltraDAGcom core blockchain software. It involves improper access control in the StateEngine implementation of SmartTransferTx, where transactions originating from 'pockets' (virtual sub-addresses) bypass spending policy checks. This flaw allows an attacker with the parent account key to drain funds from all pockets instantly, ignoring vault delays and daily limits. The issue affects versions prior to commit fb6ef59 and has been patched in that commit. No known exploits are reported in the wild.
AI Analysis
Technical Summary
UltraDAGcom core's StateEngine SmartTransferTx component had a critical logic flaw before commit fb6ef59. The spending policy enforcement failed to resolve the parent account of a 'pocket' address, which is a virtual sub-address without its own policy entries. As a result, the check_spending_policy method defaulted to an authorized state, allowing any user with the parent key to bypass restrictions such as vault delays and daily spending limits, enabling immediate draining of all pockets under an account. This vulnerability is tracked as CVE-2026-42278 with a CVSS 4.0 score of 8.8 (high severity). The flaw has been fixed by the referenced commit.
Potential Impact
An attacker possessing the parent account key can bypass critical spending policies on pocket addresses, including vault delays and daily limits, allowing immediate and unauthorized fund transfers from all pockets. This could lead to significant financial loss and compromise of account controls in affected UltraDAGcom core versions prior to the patch.
Mitigation Recommendations
This vulnerability has been patched in UltraDAGcom core as of commit fb6ef59. Users and administrators should update to this version or later to remediate the issue. Patch status is not explicitly stated beyond the commit reference; verify the vendor repository for the official fixed version. No additional mitigation steps are indicated.
CVE-2026-42278: CWE-284: Improper Access Control in UltraDAGcom core
Description
CVE-2026-42278 is a high-severity vulnerability in the UltraDAGcom core blockchain software. It involves improper access control in the StateEngine implementation of SmartTransferTx, where transactions originating from 'pockets' (virtual sub-addresses) bypass spending policy checks. This flaw allows an attacker with the parent account key to drain funds from all pockets instantly, ignoring vault delays and daily limits. The issue affects versions prior to commit fb6ef59 and has been patched in that commit. No known exploits are reported in the wild.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
UltraDAGcom core's StateEngine SmartTransferTx component had a critical logic flaw before commit fb6ef59. The spending policy enforcement failed to resolve the parent account of a 'pocket' address, which is a virtual sub-address without its own policy entries. As a result, the check_spending_policy method defaulted to an authorized state, allowing any user with the parent key to bypass restrictions such as vault delays and daily spending limits, enabling immediate draining of all pockets under an account. This vulnerability is tracked as CVE-2026-42278 with a CVSS 4.0 score of 8.8 (high severity). The flaw has been fixed by the referenced commit.
Potential Impact
An attacker possessing the parent account key can bypass critical spending policies on pocket addresses, including vault delays and daily limits, allowing immediate and unauthorized fund transfers from all pockets. This could lead to significant financial loss and compromise of account controls in affected UltraDAGcom core versions prior to the patch.
Mitigation Recommendations
This vulnerability has been patched in UltraDAGcom core as of commit fb6ef59. Users and administrators should update to this version or later to remediate the issue. Patch status is not explicitly stated beyond the commit reference; verify the vendor repository for the official fixed version. No additional mitigation steps are indicated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-04-26T11:53:27.708Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69fd6bcccbff5d8610923291
Added to database: 5/8/2026, 4:51:24 AM
Last enriched: 5/8/2026, 5:06:36 AM
Last updated: 5/8/2026, 10:18:32 PM
Views: 9
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