CVE-2026-55860Medium· 5.9▾ SunlitMariaDB 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 Authentication…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 32.5 · likelihood 0 · exploitation 0
Need a working PoC? Pro members can cast a request and our team develops one — it lands right here.
Exploit-prediction probability, daily snapshots since Aug 29.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.1%
0.1% → 0.2%
Last analysed / modified upstream
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.
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Affected packages:
org.mariadb:r2dbc-mariadb < 1.4.1Patched in:
org.mariadb:r2dbc-mariadb 1.4.1Connected by shared product, vendor, weakness, or advisory.
CVE-2026-55857Medium· 5.9MariaDB Connector/J is used to connect applications developed in Java to MariaDB and MySQL databases
CVE-2026-55859Medium· 5.9MariaDB Connector/R2DBC is a non-blocking MariaDB and MySQL client implemented in Java
CVE-2026-55854Medium· 5.9MariaDB Connector/Node.js is used to connect applications developed on Node.js to MariaDB and MySQL databases
CVE-2026-55856Medium· 5.9MariaDB Connector/J is used to connect applications developed in Java to MariaDB and MySQL databases
CVE-2026-85720Medium· 5.9The AsyncHttpClient (AHC) library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses
CVE-2026-55215High· 7.5MariaDB Connector/Node.js is used to connect applications developed on Node.js to MariaDB and MySQL databases