{"schema":"threatline.record/2","record":{"id":"CVE-2026-107819","aliases":["GHSA-fmq9-qjxj-qpf7"],"summary":"MariaDB Connector/C: libmariadb allowed cleartext password leakage on TLS hostname verification failure","details":"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.","categories":["Databases"],"product":"server","vendor":"MariaDB","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-107819","source_modified_at":"2026-10-09T17:59:15.334Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"server","vendor":"MariaDB","versions":[{"status":"affected","version":">= 3.4.1, < 3.4.10"}],"defaultStatus":null},{"source":"GitHub Advisory Database","source_url":"https://github.com/MariaDB/server/security/advisories/GHSA-fmq9-qjxj-qpf7","source_modified_at":"2026-10-09T17:24:44Z","fetched_at":"2026-10-25T01:05:06.841276Z","package":{"ecosystem":"","name":"libmariadb"},"range":"3.4.1–3.4.9"}],"fixed_versions":[{"source":"GitHub Advisory Database","source_url":"https://github.com/MariaDB/server/security/advisories/GHSA-fmq9-qjxj-qpf7","source_modified_at":"2026-10-09T17:24:44Z","fetched_at":"2026-10-25T01:05:06.841276Z","package":{"ecosystem":"","name":"libmariadb"},"version":"3.4.10"}],"cvss":5.9,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00242,"percentile":0.14571,"score_date":"2026-10-23"},"published_at":"2026-10-09T17:25:45.082Z","modified_at":"2026-10-09T17:59:15.334Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-107819","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-09T17:59:15.334Z"},{"source":"GitHub Advisory Database","url":"https://github.com/MariaDB/server/security/advisories/GHSA-fmq9-qjxj-qpf7","fetched_at":"2026-10-25T01:05:06.841276Z","source_modified_at":"2026-10-09T17:24:44Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-107819","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","GitHub Advisory Database","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/MariaDB/server/security/advisories/GHSA-fmq9-qjxj-qpf7","tags":["x_refsource_CONFIRM"]},{"source":"CVE List","url":"https://github.com/mariadb-corporation/mariadb-connector-c/commit/e8c0a16d94ddf844668d684a7d42b37ac8e0fc02","tags":["x_refsource_MISC"]},{"source":"CVE List","url":"https://github.com/mariadb-corporation/mariadb-connector-c/releases/tag/v3.4.10","tags":["x_refsource_MISC"]},{"source":"CVE List","url":"https://jira.mariadb.org/browse/CONC-846","tags":["x_refsource_MISC"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"partial","assessed_at":"2026-10-09T17:59:07.078424Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"vendor and product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-09T17:59:15.334Z","content_hash":"8208f2e2586ce818845bdf7e70a7d818bab9a992e60785002e52e0a96c109e85"}}