Vulnerability in WonderTrader Affects Internal Limit Order Book Cache
CVE-2026-19037

5.3MEDIUM

Key Information:

Vendor

WonderTrader

Status
Wondertrader
Vendor
CVE Published:
6 August 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-19037?

A weakness has been discovered in WonderTrader versions up to 0.9.9, specifically in the MatchEngine::update_lob function located in src/WtBtCore/MatchEngine.cpp. This vulnerability impacts the Internal Limit Order Book Cache Handler, potentially allowing attackers to manipulate enforcement of behavioral workflows. With remote exploitation capability publicized, this vulnerability poses a serious risk. Despite outreach to the vendor for response regarding this issue, no communication was received.

Affected Version(s)

WonderTrader 0.9.0

WonderTrader 0.9.1

WonderTrader 0.9.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-19037 - Proof of Concept

References

https://vuldb.com/vuln/386456
vdb-entrytechnical-description
https://vuldb.com/vuln/386456/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-19037
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

sannomiya (VulDB User)
VulDB CNA Team
.