{"id":"CVE-2026-19854","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-19854","generatedAt":"2026-10-28T09:27:38.519Z","title":"When the ClickHouse plugin uses Native protocol (the default) with PDC or secure SOCKS, it asks for TLS but the connection library ignores that and talks to ClickHouse in the clear.","description":"When the ClickHouse plugin uses Native protocol (the default) with PDC or secure SOCKS, it asks for TLS but the connection library ignores that and talks to ClickHouse in the clear. Username, password, queries, and results can be read on the hop after the proxy. The server certificate is never checked, and a configured client certificate is not sent.","published":"2026-08-27T17:17:43.000Z","lastModified":"2026-08-31T18:50:00.000Z","status":"Undergoing Analysis","sourceIdentifier":"security@grafana.com","cvss":{"version":"3.1","score":6.1,"severity":"MEDIUM","vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N"},"cwe":["CWE-319"],"affected":[],"epss":{"score":0.00073,"percentile":0.00063,"date":"2026-10-27","history":[]},"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 (0.07%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://grafana.com/security/security-advisories/cve-2026-19854","source":"security@grafana.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-19854","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."}