CVE-2026-55857: org.mariadb.jdbc:mariadb-java-client has Cleartext Transmission of Sensitive Information and Insufficiently Protected Credentials
When PAM (dialog) authentication is used, the connector can be coerced into sending the account password in cleartext over an insecure connection. A hostile or man-in-the-middle server can trigger this with the default configuration, disclosing the user’s password.
References
- github.com/advisories/GHSA-qxvw-fvwx-5cp7
- github.com/mariadb-corporation/mariadb-connector-j/commit/a8599ab1cbe4b8818ea945bf56a4e012c302b388
- github.com/mariadb-corporation/mariadb-connector-j/commit/f4a727c764d1cf48fd0c3d5e301dfa92503e0a58
- github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.4.3
- github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.5.9
- github.com/mariadb-corporation/mariadb-connector-j/security/advisories/GHSA-qxvw-fvwx-5cp7
- jira.mariadb.org/browse/CONJ-1320
- nvd.nist.gov/vuln/detail/CVE-2026-55857
Code Behaviors & Features
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