CVE-2026-119281
MariaDB Connector/J: Server could switch character_set_results away from UTF-8 without the client noticing
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 connector assumed result bytes were UTF-8 but guarded only changes to character_set_client. It did not reject non-UTF-8 character_set_results changes and relied on the server's global session_track_system_variables configuration to report character-set changes. A malicious or compromised server, or a machine-in-the-middle attacker, could suppress tracking or change the result charset so application strings differed from the returned bytes, potentially defeating application-side validation or escaping that depended on the decoded values. This issue is fixed in versions 3.3.7, 3.4.5, and 3.5.11.
Fixes and workarounds
Fix
org.mariadb.jdbc:mariadb-java-client (Maven): OSV reports a fixed version 3.3.7. Check the advisory for supported release branches.
Source: OSV GHSA-grfq-r75j-rw9xFix
org.mariadb.jdbc:mariadb-java-client (Maven): OSV reports a fixed version 3.4.5. Check the advisory for supported release branches.
Source: OSV GHSA-grfq-r75j-rw9xFix
org.mariadb.jdbc:mariadb-java-client (Maven): OSV reports a fixed version 3.5.11. Check the advisory for supported release branches.
Source: OSV GHSA-grfq-r75j-rw9xAffected products and versions
| Product | Versions | Authority |
|---|---|---|
| mariadb-connector-j mariadb-corporation |
>= 3.0.0, < 3.3.7 (affected) >= 3.4.0, < 3.4.5 (affected) >= 3.5.0, < 3.5.11 (affected) |
CNA: GitHub_M |
org.mariadb.jdbc:mariadb-java-clientorg.mariadb.jdbc:mariadb-java-client
Maven |
3.0.1-beta (affected, Maven) 3.0.10 (affected, Maven) 3.0.11 (affected, Maven) 3.0.2-rc (affected, Maven) 3.0.3 (affected, Maven) 3.0.4 (affected, Maven) 3.0.5 (affected, Maven) 3.0.6 (affected, Maven) 3.0.7 (affected, Maven) 3.0.8 (affected, Maven) 3.0.9 (affected, Maven) 3.1.0 (affected, Maven) 3.1.1 (affected, Maven) 3.1.2 (affected, Maven) 3.1.3 (affected, Maven) 3.1.4 (affected, Maven) 3.2.0 (affected, Maven) 3.3.0 (affected, Maven) 3.3.1 (affected, Maven) 3.3.2 (affected, Maven) 3.3.3 (affected, Maven) 3.3.4 (affected, Maven) 3.3.5 (affected, Maven) 3.3.6 (affected, Maven) Ecosystem version events: introduced 3.0.0; fixed 3.3.7 Source events (ECOSYSTEM)Other versions: unaffected |
OSV GHSA-grfq-r75j-rw9x |
org.mariadb.jdbc:mariadb-java-clientorg.mariadb.jdbc:mariadb-java-client
Maven |
3.4.0 (affected, Maven) 3.4.1 (affected, Maven) 3.4.2 (affected, Maven) 3.4.3 (affected, Maven) 3.4.4 (affected, Maven) Ecosystem version events: introduced 3.4.0; fixed 3.4.5 Source events (ECOSYSTEM)Other versions: unaffected |
OSV GHSA-grfq-r75j-rw9x |
org.mariadb.jdbc:mariadb-java-clientorg.mariadb.jdbc:mariadb-java-client
Maven |
3.5.0 (affected, Maven) 3.5.1 (affected, Maven) 3.5.10 (affected, Maven) 3.5.2 (affected, Maven) 3.5.3 (affected, Maven) 3.5.4 (affected, Maven) 3.5.5 (affected, Maven) 3.5.6 (affected, Maven) 3.5.7 (affected, Maven) 3.5.8 (affected, Maven) 3.5.9 (affected, Maven) Ecosystem version events: introduced 3.5.0; fixed 3.5.11 Source events (ECOSYSTEM)Other versions: unaffected |
OSV GHSA-grfq-r75j-rw9x |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 3.1 / 5.9 medium |
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N | CNA: GitHub_M |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://github.com/mariadb-corporation/mariadb-connector-j/security/advisories/GHSA-grfq-r75j-rw9xCNA: GitHub_M · x_refsource_CONFIRM
- https://github.com/mariadb-corporation/mariadb-connector-j/commit/af5e565eb171cfc66ea8e948ddc616abed0c4623CNA: GitHub_M · x_refsource_MISC
- https://github.com/mariadb-corporation/mariadb-connector-j/commit/d51b968c1b795c73d24e0b3f960205b7bc82d423CNA: GitHub_M · x_refsource_MISC
- https://github.com/mariadb-corporation/mariadb-connector-j/commit/fdabe74a7df6dce1d6c099f4d0ca1e2acc25919aCNA: GitHub_M · x_refsource_MISC
- https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.3.7CNA: GitHub_M · x_refsource_MISC
- https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.4.5CNA: GitHub_M · x_refsource_MISC
- https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.5.11CNA: GitHub_M · x_refsource_MISC
- https://github.com/advisories/GHSA-grfq-r75j-rw9xOSV / GitHub Security Advisories · advisory
- https://osv.dev/vulnerability/GHSA-grfq-r75j-rw9xOSV / GitHub Security Advisories · osv
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