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THREAT OPS › Threat News › [GHSA] GHSA-xvr9-35cr-46v9 (medium) — org.mariadb.jdbc:mariadb-java-client has Inappropriate Encoding for Output Context

[GHSA] GHSA-xvr9-35cr-46v9 (medium) — org.mariadb.jdbc:mariadb-java-client has Inappropriate Encoding for Output Context

medgithub_advisoriesPublished 2026-08-28

GHSA-xvr9-35cr-46v9 Severity: medium CVE: CVE-2026-55858

org.mariadb.jdbc:mariadb-java-client has Inappropriate Encoding for Output Context

### Summary

The connector encodes and decodes all character data assuming the connection character set is UTF-8. A server can change character_set_client mid-session to a non-UTF-8 charset, after which the driver and server interpret the same bytes under di

Indicators of compromise

CVE-2026-55858cve

Original source: https://github.com/advisories/GHSA-xvr9-35cr-46v9