CVE-2026-19854

MediumCVSS 6.1/10Last modified Aug 31, 2026

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.

Metrics

CVSS 3.1 6.1/10CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N

Weakness enumeration

CWE-319

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

No affected versions have been published.

Timeline

Published
Aug 27, 2026
Last modified
Aug 31, 2026
NVD status
Awaiting Analysis

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CVE-2026-19854: Medium severity, CVSS 6.1 | Vulnix