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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| mariadb-corporation | mariadb-connector-j | >= 3.0.0, < 3.3.7, >= 3.4.0, < 3.4.5, >= 3.5.0, < 3.5.11 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | mariadb-connector-java | No fix yet | — |
| Debian 13 | mariadb-connector-java | No fix yet | — |
| Debian 12 | mariadb-connector-java | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | mariadb-connector-java | No fix yet | — |
| Ubuntu 26.04 LTS | mariadb-connector-java | No fix yet | — |
| Ubuntu 24.04 LTS | mariadb-connector-java | No fix yet | — |
| Ubuntu 22.04 LTS | mariadb-connector-java | No fix yet | — |
| Ubuntu 20.04 LTS | mariadb-connector-java | No fix yet | — |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | mariadb-connector-java | No fix yet | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | mariadb-java-client | 3.5.11-1.1 | openSUSE-SU-2026:12401-1 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | debezium-3.5-connector-jdbc +1 | 3.5.2-r14 | — |
| Wolfi rolling | debezium-3.6-connector-jdbc +1 | 3.6.3-r5 | — |
| Wolfi rolling | debezium-3.7-connector-jdbc +1 | 3.7.0-r3 | — |
| Wolfi rolling | keycloak-26.6 +1 | 26.6.7-r10 | — |
| Wolfi rolling | trino-plugin-mariadb | 484-r4 | — |
| Wolfi rolling | zipkin | 3.6.1-r40 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Maven | org.mariadb.jdbc:mariadb-java-client | >= 3.0.0, < 3.3.7 | 3.3.7 | GHSA-4jq2-8v3c-97w8 |
| Maven | org.mariadb.jdbc:mariadb-java-client | >= 3.4.0, < 3.4.5 | 3.4.5 | GHSA-4jq2-8v3c-97w8 |
| Maven | org.mariadb.jdbc:mariadb-java-client | >= 3.5.0, < 3.5.11 | 3.5.11 | GHSA-4jq2-8v3c-97w8 |
Advisories 2
- openSUSE-SU-2026:12401-1 mariadb-java-client-3.5.11-1.1 on GA media SUSE / openSUSE Security Updates · Nov 4, 2026
- WID-SEC-2026-4250 MariaDB Java Connector: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 29, 2026
References
- https://github.com/mariadb-corporation/mariadb-connector-j/security/advisories/GHSA-4jq2-8v3c-97w8
- https://github.com/mariadb-corporation/mariadb-connector-j/commit/280efcfb4390055858fa2dd12b722d85a6a13ab8
- https://github.com/mariadb-corporation/mariadb-connector-j/commit/47aba5a23548b35191865a428cc674316b95ee47
- https://github.com/mariadb-corporation/mariadb-connector-j/commit/e9d767103bfd178ed57caa4cb97bbfbf7e54da6b
- https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.3.7
- https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.4.5
- https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.5.11