CVE-2026-19854 — CVE-2026-19854 CVE Record

CVE-2026-19854

CVE-2026-19854 CVE Record PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
Grafana / Clickhouse Datasource	affected 3.1.0 through 4.20.0

CWE

CWE-319

References

https://grafana.com/security/security-advisories/cve-2026-19854

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.