{"id":"CVE-2026-107382","sourceIdentifier":"security-advisories@github.com","published":"2026-10-08T19:17:00.590","lastModified":"2026-10-08T20:25:00.647","vulnStatus":"Awaiting Analysis","cveTags":[],"descriptions":[{"lang":"en","value":"MariaDB Connector/Node.js is used to connect applications developed on Node.js to MariaDB and MySQL databases. From 3.3.0 until 3.5.4, the zero-configuration TLS fingerprint-validation path calls Ed25519PasswordAuth.hash() through Authentication.validateFingerPrint, but Ed25519PasswordAuth.hash() references a seed identifier that is not in scope. Exposure requires a MariaDB server reached over TCP, TLS enabled with ssl: true or an ssl object whose rejectUnauthorized value is not false, a password set, no ssl.ca configured, and client_ed25519 negotiated as the authentication plugin. Under those conditions, a legitimate server, malicious server, or network attacker presenting a self-signed certificate can reach this path and cause a synchronous ReferenceError to escape the socket data handler. Under Node.js default uncaught-exception behavior, the client process terminates, causing denial of service. Configurations using a provided CA, rejectUnauthorized: false, another authentication plugin, or a Unix socket do not reach this vulnerable path. This issue is fixed in version 3.5.4."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"mariadb-corporation","product":"mariadb-connector-nodejs","versions":[{"version":">= 3.3.0, < 3.5.4","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":5.9,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":2.2,"impactScore":3.6}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-10-08T18:42:22.310382Z","id":"CVE-2026-107382","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Primary","description":[{"lang":"en","value":"CWE-248"}]}],"references":[{"url":"https://github.com/mariadb-corporation/mariadb-connector-nodejs/commit/784ca3d757194a05f202d84b0c762321e76a7915","source":"security-advisories@github.com"},{"url":"https://github.com/mariadb-corporation/mariadb-connector-nodejs/releases/tag/3.5.4","source":"security-advisories@github.com"},{"url":"https://github.com/mariadb-corporation/mariadb-connector-nodejs/security/advisories/GHSA-cx2f-j9fh-8g68","source":"security-advisories@github.com"},{"url":"https://hackerone.com/reports/3835450","source":"security-advisories@github.com"},{"url":"https://jira.mariadb.org/browse/CONJS-356","source":"security-advisories@github.com"}]}