CVE-2026-103224
CVE-2026-103224
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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 MySQL message decoder aggregates inbound multi-packet payloads into a composite direct-memory buffer without any cumulative size limit. A malicious, compromised, or man-in-the-middle MySQL server can send a continuous stream of packets with the maximum payload length (0xFFFFFF), preventing the end-of-message condition from being reached, 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-mysql-client.
CVSS 8.2 · High · EPSS 0.3%
- Published
- Updated
Affected products and versions
eclipse vert.x
- Versions
- ≥ 4.0.0, ≤ 4.5.34: Affected (semver)
- ≥ 5.0.0, ≤ 5.0.12: Affected (semver)
- ≥ 5.1.0, ≤ 5.1.9: Affected (semver)
- 5.2.0: Affected (semver)
No fix published