[ CVE-2026-102462 · Published 15 Oct 2026 ]

Vulnerability in Eclipse Foundation Eclipse Vert.x

CVSS 5.9 EPSS <1%No fix listed yet

[ Description ]Official 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. The impacted component is io.vertx:vertx-mssql-client.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

github.com/eclipse-vertx/vertx-sql-client/security/advisories/GHSA-fg6c-83v6-vhq4Vendor Advisory
gitlab.eclipse.org/security/cve-assignment/-/work_items/346Issue TrackingThird Party Advisory