CVE-2026-40583

April 22, 2026, 9:24 p.m.

8.8
High

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.

Product(s) Impacted

Vendor Product Versions
Ultradag
  • Ultradag
  • 0.1

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-460
Improper Cleanup on Thrown Exception
The product does not clean up its state or incorrectly cleans up its state when an exception is thrown, leading to unexpected state or control flow.

*CPE(s)

Affected systems and software identified for this CVE.

Type Vendor Product Version Update Edition Language Software Edition Target Software Target Hardware Other Information
a ultradag ultradag 0.1 / / / / / / /

References

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

Tags

[email protected]
CWE-460
2026-04-21
CVE-2026-40583

CVSS Score

8.8 / 10

CVSS Data - 4.0

  • Attack Vector: NETWORK
  • Attack Complexity: LOW
  • Attack Requirements: NONE
  • Privileges Required: NONE
  • User Interaction: NONE
  • Scope:
  • Confidentiality Impact: NONE
  • Integrity Impact: LOW
  • Availability Impact: HIGH
  • Exploit Maturity: NOT_DEFINED

    • 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Red

    View Vector String

Timeline

Published: April 21, 2026, 5:16 p.m.
Last Modified: April 22, 2026, 9:24 p.m.

Status : Awaiting Analysis

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

[email protected]

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.