{"id":"CVE-2026-19037","state":"PUBLISHED","title":"WonderTrader Internal Limit Order Book Cache MatchEngine.cpp update_lob behavioral workflow","description":"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.","publishedAt":"2026-08-06T12:30:57.930Z","updatedAt":"2026-08-06T13:50:39.568Z","severity":{"score":5.3,"label":"Medium","version":"4.0","vector":"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:P","source":"VulDB"},"assigner":"VulDB","products":["n/a WonderTrader"],"affected":[{"vendor":"n/a","product":"WonderTrader","versions":[{"version":"0.9.0","status":"affected"},{"version":"0.9.1","status":"affected"},{"version":"0.9.2","status":"affected"},{"version":"0.9.3","status":"affected"},{"version":"0.9.4","status":"affected"},{"version":"0.9.5","status":"affected"},{"version":"0.9.6","status":"affected"},{"version":"0.9.7","status":"affected"},{"version":"0.9.8","status":"affected"},{"version":"0.9.9","status":"affected"}],"cpes":["cpe:2.3:a:wondertrader:wondertrader:*:*:*:*:*:*:*:*"],"modules":["Internal Limit Order Book Cache Handler"]}],"references":["https://vuldb.com/vuln/386456","https://vuldb.com/vuln/386456/cti","https://vuldb.com/cve/CVE-2026-19037","https://vuldb.com/submit/863755","https://my.feishu.cn/wiki/BXljwvHSLiiqiSkI7jScIqkSn4c"],"weaknesses":["CWE-841","CWE-840"],"ingestedAt":"2026-10-29T20:11:10.572Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/19xxx/CVE-2026-19037.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-19037","state":"PUBLISHED","datePublished":"2026-08-06T12:30:57.930Z","dateUpdated":"2026-08-06T13:50:39.568Z","assignerShortName":"VulDB","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateReserved":"2026-08-06T05:50:55.346Z"},"containers":{"cna":{"title":"WonderTrader Internal Limit Order Book Cache MatchEngine.cpp update_lob behavioral workflow","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"n/a","product":"WonderTrader","versions":[{"version":"0.9.0","status":"affected"},{"version":"0.9.1","status":"affected"},{"version":"0.9.2","status":"affected"},{"version":"0.9.3","status":"affected"},{"version":"0.9.4","status":"affected"},{"version":"0.9.5","status":"affected"},{"version":"0.9.6","status":"affected"},{"version":"0.9.7","status":"affected"},{"version":"0.9.8","status":"affected"},{"version":"0.9.9","status":"affected"}],"cpes":["cpe:2.3:a:wondertrader:wondertrader:*:*:*:*:*:*:*:*"],"modules":["Internal Limit Order Book Cache Handler"]}],"references":[{"url":"https://vuldb.com/vuln/386456","name":"VDB-386456 | WonderTrader Internal Limit Order Book Cache MatchEngine.cpp update_lob behavioral workflow","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/vuln/386456/cti","name":"VDB-386456 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/cve/CVE-2026-19037","name":"CVE-2026-19037 | CVE Analysis and Report","tags":["third-party-advisory"]},{"url":"https://vuldb.com/submit/863755","name":"Submit #863755 | GitHub wondertrader 0.9.9 Incorrect Control Flow","tags":["third-party-advisory"]},{"url":"https://my.feishu.cn/wiki/BXljwvHSLiiqiSkI7jScIqkSn4c","tags":["exploit"]}],"metrics":[{"cvssV4_0":{"version":"4.0","baseScore":5.3,"vectorString":"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:P","baseSeverity":"MEDIUM"}},{"cvssV3_1":{"version":"3.1","baseScore":4.3,"vectorString":"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","baseSeverity":"MEDIUM"}},{"cvssV3_0":{"version":"3.0","baseScore":4.3,"vectorString":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R","baseSeverity":"MEDIUM"}},{"cvssV2_0":{"version":"2.0","baseScore":4,"vectorString":"AV:N/AC:L/Au:S/C:N/I:P/A:N/E:POC/RL:ND/RC:UR"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-841","type":"CWE","lang":"en","description":"Enforcement of Behavioral Workflow"}]},{"descriptions":[{"cweId":"CWE-840","type":"CWE","lang":"en","description":"Business Logic Errors"}]}],"providerMetadata":{"shortName":"VulDB","orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateUpdated":"2026-08-06T12:30:57.930Z"},"timeline":[{"time":"2026-08-06T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2026-08-06T02:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2026-08-06T07:56:01.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"sannomiya (VulDB User)","type":"reporter"},{"lang":"en","value":"VulDB CNA Team","type":"coordinator"}],"x_generator":["VulDB PVTS v202608"]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-06T13:50:32.876278Z","id":"CVE-2026-19037","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-06T13:50:39.568Z"}}]}}}