CVE-2026-19037

MEDIUM 4.3

WonderTrader Internal Limit Order Book Cache MatchEngine.cpp update_lob behavioral workflow

CVSS Score

4.3

EPSS Score

0.0%

EPSS Percentile

0th

A weakness has been identified in WonderTrader up to 0.9.9. This vulnerability affects the function MatchEngine::update_lob of the file src/WtBtCore/MatchEngine.cpp of the component Internal Limit Order Book Cache Handler. This manipulation causes enforcement of behavioral workflow. Remote exploitation of the attack is possible. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

CWE	CWE-841 CWE-840
Vendor	n/a
Product	wondertrader
Published	Aug 6, 2026
Last Updated	Aug 6, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

n/a / WonderTrader

0.9.0 0.9.1 0.9.2 0.9.3 0.9.4 0.9.5 0.9.6 0.9.7 0.9.8 0.9.9

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/386456 vuldb.com: https://vuldb.com/vuln/386456/cti vuldb.com: https://vuldb.com/cve/CVE-2026-19037 vuldb.com: https://vuldb.com/submit/863755 my.feishu.cn: https://my.feishu.cn/wiki/BXljwvHSLiiqiSkI7jScIqkSn4c

Credits

🔍 sannomiya (VulDB User) VulDB CNA Team