Vulnerability · Published Oct 29, 2026 · Assigned by GitHub_M
CVE-2026-119280MariaDB Connector/J : XA recover() trusted server-supplied gtrid and bqual lengths
Low 3.7
In plain English
A low-severity improper input validation in mariadb-connector-j from mariadb-corporation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 23% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | mariadb-connector-java | no fix listed | DEBIAN-CVE-2026-119280 |
| Debian:13 | mariadb-connector-java | no fix listed | DEBIAN-CVE-2026-119280 |
| Debian:14 | mariadb-connector-java | no fix listed | DEBIAN-CVE-2026-119280 |
| Maven | org.mariadb.jdbc:mariadb-java-client | 3.3.7 | GHSA-4jq2-8v3c-97w8 |
| Maven | org.mariadb.jdbc:mariadb-java-client | 3.4.5 | GHSA-4jq2-8v3c-97w8 |
| Maven | org.mariadb.jdbc:mariadb-java-client | 3.5.11 | GHSA-4jq2-8v3c-97w8 |
| Ubuntu:22.04:LTS | mariadb-connector-java | no fix listed | UBUNTU-CVE-2026-119280 |
| Ubuntu:24.04:LTS | mariadb-connector-java | no fix listed | UBUNTU-CVE-2026-119280 |
| Ubuntu:26.04:LTS | mariadb-connector-java | no fix listed | UBUNTU-CVE-2026-119280 |
| Ubuntu:26.10 | mariadb-connector-java | no fix listed | UBUNTU-CVE-2026-119280 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| mariadb-corporation | mariadb-connector-j | >= 3.0.0, < 3.3.7>= 3.4.0, < 3.4.5>= 3.5.0, < 3.5.11 |
Weakness: CWE-20, CWE-789 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
References
- https://github.com/mariadb-corporation/mariadb-connector-j/security/advisories/GHSA-4jq2-8v3c-97w8 x_refsource_CONFIRM
- https://github.com/mariadb-corporation/mariadb-connector-j/commit/280efcfb4390055858fa2dd12b722d85a6a13ab8 x_refsource_MISC
- https://github.com/mariadb-corporation/mariadb-connector-j/commit/47aba5a23548b35191865a428cc674316b95ee47 x_refsource_MISC
- https://github.com/mariadb-corporation/mariadb-connector-j/commit/e9d767103bfd178ed57caa4cb97bbfbf7e54da6b x_refsource_MISC
- https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.3.7 x_refsource_MISC
- https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.4.5 x_refsource_MISC
- https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.5.11 x_refsource_MISC