CVE-2026-19037: WonderTrader · Enforcement of Behavioral Workflow
Affects WonderTraderSource CVE Database V5
Public exploit available · CVSS 5.3 Medium.
Data as of 5 Nov 2026, 23:24 UTC
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 30% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:PExploitation evidence
Disclosed: evidence found.
CVE published 6 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: evidence found.
CVSS exploit maturity: proof of concept public
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CVSS vector, the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| WonderTrader | Affected
| Fixed in– |
CPE configurations (1)
cpe:2.3:a:wondertrader:wondertrader:*:*:*:*:*:*:*:*
AI-suggested
Users should monitor vendor channels for updates. Until a patch is released, consider restricting network access to the vulnerable component and applying compensating controls to limit exposure.
Description
CVE-2026-19037 is a medium severity vulnerability in WonderTrader versions 0.9.0 through 0.9.9. It affects the MatchEngine::update_lob function in the Internal Limit Order Book Cache Handler component. The vulnerability allows remote exploitation that manipulates enforcement of behavioral workflow. Public exploit code is available, but the vendor has not responded or provided a fix.