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Threats Tagged 'cve-2026-55859'

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Threats Tagged 'cve-2026-55859'

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MariaDB Connector/R2DBC versions prior to 1.4.1 improperly handle mid-session changes to the character_set_client encoding when it is changed from UTF-8 to another character set. This causes a mismatch between client and server character encoding, leading to silent data corruption and potential bypass of byte-wise quoting or escaping. The issue is fixed in version 1.4.1 by restricting accepted character sets to utf8, utf8mb3, or utf8mb4 after initialization, closing the connection otherwise.

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