{"id":"CVE-2026-102463","published":"2026-10-15T09:17:15.143","lastModified":"2026-10-15T15:17:18.807","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 binary array decoder in vertx-pg-client (DataTypeCodec.binaryDecodeArray) allocates a Java array sized by a server-declared 32-bit dimension count with no upper bound. A malicious or compromised PostgreSQL server, or an on-path attacker intercepting an unencrypted connection, can send a crafted DataRow message with an excessively large array dimension value, causing the client to attempt a multi-gigabyte heap allocation and crash with an OutOfMemoryError.\n\n\n\nThe impacted component is io.vertx:vertx-pg-client.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":["CWE-789"],"vendors":[],"products":[],"references":[{"url":"https://github.com/eclipse-vertx/vertx-sql-client/security/advisories/GHSA-xqmh-8fhj-48fp","tags":[]},{"url":"https://gitlab.eclipse.org/security/cve-assignment/-/work_items/345","tags":[]}],"exploitRefs":[{"url":"https://github.com/eclipse-vertx/vertx-sql-client/security/advisories/GHSA-xqmh-8fhj-48fp","tags":[]}],"hasPoc":true,"ai":null}