SB2026090102 - Cleartext transmission of sensitive information in Grafana Clickhouse Datasource
Published: September 1, 2026
Security Bulletin ID
SB2026090102
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Adjecent network
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Cleartext transmission of sensitive information (CVE-ID: CVE-2026-19854)
CWE-ID: CWE-319 - Cleartext Transmission of Sensitive Information
CVSSv4: 6 [CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to software uses insecure communication channel to transmit sensitive information when using Native protocol (the default) with PDC or secure SOCKS. A remote attacker on the local network can gain access to sensitive data.
Remediation
Install update from vendor's website.