MariaDB: mysql_json plugin OOB reads

Summary

MariaDB server is a community developed fork of MySQL server. From 10.6.1 until 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2, the mysql_json plugin assumed that imported MySQL tables contained valid MySQL binary JSON data. A specially prepared MySQL table containing invalid JSON data could cause out-of-bounds reads, information disclosure, or a server crash. This issue is fixed in versions 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2.

Timeline

1. Oct 9, 2026, 5:22 PM UTCCVE published
2. Oct 13, 2026, 5:03 PM UTCCISA SSVC assessment

   Exploitation: none · Automatable: no · Technical impact: partial

3. Oct 13, 2026, 5:04 PM UTCRecord last updated

Affected versions

• MariaDB server

  From 10.6.1 · fixed in 10.6.28; From 10.11.1 · fixed in 10.11.19; From 11.4.1 · fixed in 11.4.13; From 11.8.1 · fixed in 11.8.9; From 12.3.1 · fixed in 12.3.3; From 13.0.1 · fixed in 13.0.2

• mariadbBitnami

  From 10.6.1 · fixed in 10.6.28; From 10.11.1 · fixed in 10.11.19; From 11.4.1 · fixed in 11.4.13; From 11.8.1 · fixed in 11.8.9; From 12.3.1 · fixed in 12.3.3; From 13.0.1 · fixed in 13.0.2

• mariadb-minBitnami

  From 10.6.1 · fixed in 10.6.28; From 10.11.1 · fixed in 10.11.19; From 11.4.1 · fixed in 11.4.13; From 11.8.1 · fixed in 11.8.9; From 12.3.1 · fixed in 12.3.3; From 13.0.1 · fixed in 13.0.2

• mysql-clientBitnami

  From 10.6.1 · fixed in 10.6.28; From 10.11.1 · fixed in 10.11.19; From 11.4.1 · fixed in 11.4.13; From 11.8.1 · fixed in 11.8.9; From 12.3.1 · fixed in 12.3.3; From 13.0.1 · fixed in 13.0.2

References 9