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2 vulnerabilities found for Clickhouse Datasource by Grafana
CVE-2026-19854 (GCVE-0-2026-19854)
Vulnerability from nvd – Published: 2026-08-27 16:35 – Updated: 2026-08-27 17:44
VLAI
EPSS
VEX
Title
CVE-2026-19854 CVE Record
Summary
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.
Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-27 17:44 UTC
CWE
- CWE-319 - Cleartext Transmission of Sensitive Information
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://grafana.com/security/security-advisories/… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Grafana | Clickhouse Datasource |
Affected:
3.1.0 , ≤ 4.20.0
(semver)
|
Date Public
2026-08-14 19:31
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CVE-2026-19854 (GCVE-0-2026-19854)
Vulnerability from cvelistv5 – Published: 2026-08-27 16:35 – Updated: 2026-08-27 17:44
VLAI
EPSS
VEX
Title
CVE-2026-19854 CVE Record
Summary
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.
Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-27 17:44 UTC
CWE
- CWE-319 - Cleartext Transmission of Sensitive Information
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://grafana.com/security/security-advisories/… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Grafana | Clickhouse Datasource |
Affected:
3.1.0 , ≤ 4.20.0
(semver)
|
Date Public
2026-08-14 19:31
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