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[ CVE-2026-119280 · Published 29 Oct 2026 ]

MariaDB Connector/J: XA recover() trusted server-supplied gtrid and bqual lengths

CVSS 3.7 EPSS <1%1 agency advisoryFix available

[ Description ]Official description

MariaDB Connector/J is used to connect applications developed in Java to MariaDB and MySQL databases. From 3.0.0 until 3.3.7, 3.4.5, and 3.5.11, the MariaDbPoolConnection.recover() and MariaDbPoolPinnedConnection.recover() implementations trusted the gtrid_length and bqual_length columns returned by XA RECOVER. The methods allocated and split Xid byte arrays without validating the lengths against Xid.MAXGTRIDSIZE, Xid.MAXBQUALSIZE, or the actual data payload. A malicious or compromised server, or a machine-in-the-middle attacker, could cause large allocations, NegativeArraySizeException, or ArrayIndexOutOfBoundsException during XA recovery. This issue is fixed in versions 3.3.7, 3.4.5, and 3.5.11.

[ Fixes ]Fixes and patches

[ Advisories ]Government CERT advisories

[ Packages ]Affected open-source packages

  • org.mariadb.jdbc:mariadb-java-client mavenAffected >= 3.0.0, < 3.3.7 · fixed in 3.3.7 · GHSA-4jq2-8v3c-97w8
  • org.mariadb.jdbc:mariadb-java-client mavenAffected >= 3.4.0, < 3.4.5 · fixed in 3.4.5 · GHSA-4jq2-8v3c-97w8
  • org.mariadb.jdbc:mariadb-java-client mavenAffected >= 3.5.0, < 3.5.11 · fixed in 3.5.11 · GHSA-4jq2-8v3c-97w8

[ References ]References