{"id":"CVE-2026-107819","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-107819","generatedAt":"2026-10-27T23:50:56.017Z","title":"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.","description":"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.","published":"2026-10-09T18:17:04.000Z","lastModified":"2026-10-13T15:27:57.000Z","status":"Awaiting Analysis","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":5.9,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"},"cwe":["CWE-297"],"affected":[],"epss":{"score":0.00346,"percentile":0.27952,"date":"2026-10-26","history":[{"date":"2026-10-10","score":0.0019,"percentile":0.07986}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.35%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-09T18:17:04.000Z","detail":{"score":"5.9","severity":"MEDIUM","publishedAt":"2026-10-09T18:17:03.533Z"},"summary":"New CVE, medium severity (CVSS 5.9)."}],"references":[{"url":"https://github.com/MariaDB/server/security/advisories/GHSA-fmq9-qjxj-qpf7","source":"security-advisories@github.com"},{"url":"https://github.com/mariadb-corporation/mariadb-connector-c/commit/e8c0a16d94ddf844668d684a7d42b37ac8e0fc02","source":"security-advisories@github.com"},{"url":"https://github.com/mariadb-corporation/mariadb-connector-c/releases/tag/v3.4.10","source":"security-advisories@github.com"},{"url":"https://jira.mariadb.org/browse/CONC-846","source":"security-advisories@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-107819","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}