CVE-2026-19854

CVE-2026-19854 CVE Record

State
Published
Severity
6.1 Medium
Published
Aug 27, 2026
Updated
Aug 27, 2026
Reserved
Aug 14, 2026

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.16.1 MediumCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:NGRAFANA

Weaknesses

  • CWE-319 Cleartext Transmission of Sensitive Information

Affected Products

ProductVersions
Clickhouse DatasourceGrafana
  • 3.1.0 through 4.20.0Affected

References

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