Answer in brief
CVE-2026-19037 records a Medium severity (CVSS 4.3) vulnerability in WonderTrader Internal Limit Order Book Cache MatchEngine.cpp update_lob behavioral workflow. The current sources do not mark it as known exploited. The current feed maps n/a/WonderTrader (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 4.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps n/a/WonderTrader (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| n/a/WonderTradergeneric | 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 | Not reported |
Published upstream
Aug 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 6, 2026
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.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-19037 records a Medium severity (CVSS 4.3) vulnerability in WonderTrader Internal Limit Order Book Cache MatchEngine.cpp update_lob behavioral workflow. The current sources do not mark it as known exploited. The current feed maps n/a/WonderTrader (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 4.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps n/a/WonderTrader (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| n/a/WonderTradergeneric | 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 | Not reported |
Published upstream
Aug 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 6, 2026
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.
Quoted source text, attributed separately from HOL analysis.