CVE-2026-55860mediumCWE-319CWE-522

CVE-2026-55860: fallo de gravedad media en org.mariadb r2dbc-mariadb

MariaDB Connector/R2DBC: Cleartext password disclosure to a man-in-the-middle server (clear-text auth plugins not gated on a secure transport)

Publicada el · Actualizada el

Seguir esta CVE+ Monitorear mariadb-connector-r2dbc+ Monitorear r2dbc-mariadb

Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.

13Vexday Risk Score

Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.

ssvc Trackcvss 5.9epss 0.2%
MariaDB Connector/R2DBC is a non-blocking MariaDB and MySQL client implemented in Java. Prior to 1.4.1, org.mariadb:r2dbc-mariadb does not gate clear-text password authentication plugins on transport encryption because the AuthenticationPlugin interface has no capability for a plugin to require a secure connection. A hostile or man-in-the-middle MariaDB server can send an AuthSwitchRequest naming mysql_clear_password or dialog (PAM) over a plain-TCP unencrypted connection, and AuthenticationFlow permits ClearPasswordPluginFlow or PamPluginFlow to return the user's password as cleartext bytes on the wire. The disclosed credentials can subsequently be used to authenticate directly to the database server. This issue is fixed in version 1.4.1.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Productos afectados
mariadb-corporation · mariadb-connector-r2dbcorg.mariadb · r2dbc-mariadb
CVEs relacionadas — org.mariadb r2dbc-mariadb

En el mismo producto, de las más peligrosas a las menos.

CVE-2026-55859MEDIUMMariaDB Connector/R2DBC: Inappropriate Encoding for Output Context and Improper Encoding or Escaping of Output in org.mariadb:r2dbc-mariadbEPSS 0.5%