{"id":"CVE-2026-102462","state":"PUBLISHED","title":"In Eclipse Vert.x versions [4.0.0, 4.5.34] or [5.0.0,5.0.12] or [5.1.0,5.1.9] or [5.2.0, 5.2.0], the TDS message decoder in the Vert.x MSSQL client (vertx-mssql-client) aggregates ","description":"In Eclipse Vert.x versions [4.0.0, 4.5.34] or [5.0.0,5.0.12] or [5.1.0,5.1.9] or [5.2.0, 5.2.0], the TDS message decoder in the Vert.x MSSQL client (vertx-mssql-client) aggregates inbound TDS packets into a composite direct-memory buffer without any cumulative size limit. A malicious, compromised, or man-in-the-middle SQL Server can send a continuous stream of TDS packets without setting the END_OF_MESSAGE status flag, causing unbounded direct-memory allocation on the client and leading to an out-of-memory crash. This occurs before authentication completes.\n\n\n\nThe impacted component is io.vertx:vertx-mssql-client.","publishedAt":"2026-10-15T08:09:36.396Z","updatedAt":"2026-10-15T14:33:16.044Z","severity":{"score":8.2,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","source":"eclipse"},"assigner":"eclipse","products":["Eclipse Foundation Eclipse Vert.x"],"affected":[{"vendor":"Eclipse Foundation","product":"Eclipse Vert.x","defaultStatus":"unaffected","versions":[{"version":"4.0.0","status":"affected","lessThanOrEqual":"4.5.34","versionType":"semver"},{"version":"5.0.0","status":"affected","lessThanOrEqual":"5.0.12","versionType":"semver"},{"version":"5.1.0","status":"affected","lessThanOrEqual":"5.1.9","versionType":"semver"},{"version":"5.2.0","status":"affected","versionType":"semver"}]}],"references":["https://github.com/eclipse-vertx/vertx-sql-client/security/advisories/GHSA-fg6c-83v6-vhq4","https://gitlab.eclipse.org/security/cve-assignment/-/work_items/346"],"weaknesses":["CWE-400"],"ingestedAt":"2026-10-29T20:10:13.529Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/102xxx/CVE-2026-102462.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-102462","state":"PUBLISHED","datePublished":"2026-10-15T08:09:36.396Z","dateUpdated":"2026-10-15T14:33:16.044Z","assignerShortName":"eclipse","assignerOrgId":"e51fbebd-6053-4e49-959f-1b94eeb69a2c","dateReserved":"2026-09-29T08:30:02.773Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"In Eclipse Vert.x versions [4.0.0, 4.5.34] or [5.0.0,5.0.12] or [5.1.0,5.1.9] or [5.2.0, 5.2.0], the TDS message decoder in the Vert.x MSSQL client (vertx-mssql-client) aggregates inbound TDS packets into a composite direct-memory buffer without any cumulative size limit. A malicious, compromised, or man-in-the-middle SQL Server can send a continuous stream of TDS packets without setting the END_OF_MESSAGE status flag, causing unbounded direct-memory allocation on the client and leading to an out-of-memory crash. This occurs before authentication completes.\n\n\n\nThe impacted component is io.vertx:vertx-mssql-client."}],"affected":[{"vendor":"Eclipse Foundation","product":"Eclipse Vert.x","defaultStatus":"unaffected","versions":[{"version":"4.0.0","status":"affected","lessThanOrEqual":"4.5.34","versionType":"semver"},{"version":"5.0.0","status":"affected","lessThanOrEqual":"5.0.12","versionType":"semver"},{"version":"5.1.0","status":"affected","lessThanOrEqual":"5.1.9","versionType":"semver"},{"version":"5.2.0","status":"affected","versionType":"semver"}]}],"references":[{"url":"https://github.com/eclipse-vertx/vertx-sql-client/security/advisories/GHSA-fg6c-83v6-vhq4"},{"url":"https://gitlab.eclipse.org/security/cve-assignment/-/work_items/346"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"HIGH","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"HIGH","baseScore":8.2,"vectorString":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"}}],"providerMetadata":{"shortName":"eclipse","orgId":"e51fbebd-6053-4e49-959f-1b94eeb69a2c","dateUpdated":"2026-10-15T08:09:36.396Z"},"credits":[{"lang":"en","value":"Mike Read","type":"finder"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.5"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-15T14:32:56.326491Z","id":"CVE-2026-102462","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-400","type":"CWE","lang":"en","description":"CWE-400 Uncontrolled Resource Consumption"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-15T14:33:16.044Z"}}]}}}