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Vulnerabilities

CVE-2026-19854 | BDVDB-2026-365337 Detail

GrafanaClickhouse Datasource

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.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact none, availability impact none. Attack vector: adjacent.

Weaknesses#

  • CWE-319 Cleartext Transmission of Sensitive Information

References#

Exploit#

No public exploit known

History#

  1. Version 1Record published in the CVE List.