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CVE-2026-40583 Detail

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.


Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

Nist CVSS score does not match with CNA score
CNA:  GitHub, Inc.
CVSS-B 8.8 HIGH
Vector:  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

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://github.com/UltraDAGcom/core/commit/2f5a3a237ea519b48d71e6e3093c89f60694c7be GitHub, Inc.
https://github.com/UltraDAGcom/core/commit/45bcf7064741897319b6196d3d9f9e1307093511 GitHub, Inc.
https://github.com/UltraDAGcom/core/security/advisories/GHSA-q8wx-2crx-c7pp GitHub, Inc.

Weakness Enumeration

CWE-ID CWE Name Source
CWE-460 Improper Cleanup on Thrown Exception GitHub, Inc.  
CWE-696 Incorrect Behavior Order GitHub, Inc.  

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-40583
NVD Published Date:
04/21/2026
NVD Last Modified:
04/21/2026
Source:
GitHub, Inc.