{"schema_version":"1","data":[{"id":16433,"advisory_id":"8c754c12-2356-4602-8834-bc1ef963c66b","revision":1,"source_id":"core-cve","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-107819","source_published_at":"2026-10-09T17:25:45.082+00:00","published_at":"2026-10-25T01:16:19.257601+00:00","extraction_method":"structured","technologies":["core-cve","server"],"cve_ids":["CVE-2026-107819"],"event_types":["advisory"],"payload":{"kind":"advisory","title":"MariaDB Connector/C: libmariadb allowed cleartext password leakage on TLS hostname verification failure","summary":"MariaDB Connector/C is a C and C++ client library for connecting applications to MariaDB and MySQL databases. From 3.4.1 until 3.4.10, the MariaDB Connector/C libmariadb Zero-Configuration SSL authentication-switch logic checked certificate trust failure but did not reject a TLS hostname verification mismatch before selecting a non-hashing authentication plugin. An active man-in-the-middle attacker with a valid certificate for another hostname could request mysql_clear_password and obtain the database password inside the attacker-controlled TLS connection. Other MariaDB connectors are not affected. This issue is fixed in version 3.4.10.","evidence":"cve:CVE-2026-107819","products":[{"name":{"value":"server","evidence":"/containers/cna/affected/0/product"},"prerequisites":[],"fixed_versions":[],"affected_versions":[]}],"severity":"medium","structured":{"id":"CVE-2026-107819","aliases":["CVE-2026-107819"],"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":5.9,"attackVector":"NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"HIGH","availabilityImpact":"NONE","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}}],"affected":[{"vendor":"MariaDB","product":"server","versions":[{"status":"affected","version":">= 3.4.1, < 3.4.10"}]}],"modified":"2026-10-09T17:59:15.334Z","provider":"cve","references":["https://github.com/MariaDB/server/security/advisories/GHSA-fmq9-qjxj-qpf7","https://github.com/mariadb-corporation/mariadb-connector-c/commit/e8c0a16d94ddf844668d684a7d42b37ac8e0fc02","https://github.com/mariadb-corporation/mariadb-connector-c/releases/tag/v3.4.10","https://jira.mariadb.org/browse/CONC-846"],"provider_metadata":{"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-107819","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-10-09T17:59:07.078424Z"}}}],"providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-10-09T17:59:15.334Z"}}],"cna":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-10-09T17:25:45.082Z"}}},"related_cves":[{"value":"CVE-2026-107819","evidence":"/cveMetadata/cveId"}],"security_relevant":true,"severity_evidence":"/containers/cna/metrics"},"priority":{"reasons":[],"severity":"medium","linked_cves":[],"fix_available":false,"known_exploited":false,"publisher_severity":"medium"},"context_update":false}],"next_after":16433,"next_before":16433}