CVE-2026-116815: Improper Encoding (CVSS 4.3)

Description

OpenPanel before 3.0.0 contains an improper escaping vulnerability in sankey.service.ts that allows authenticated project members to break ClickHouse string literals by supplying backslashes in event names. Attackers with read access can submit crafted events[].name values to the chart.sankey procedure, causing ClickHouse parse errors that disable the project's Sankey chart endpoint.

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CVSS v3.1 Score

4.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Weakness Type (CWE)

CWE-116 CWE-116

References

Other References

https://github.com/Openpanel-dev/openpanel/security/advisories/GHSA-gvr5-22f4-pj6g https://www.vulncheck.com/advisories/openpanel-before-3.0.0-improper-clickhouse-escaping-in-sankey-service-ts

Frequently Asked Questions

What is CVE-2026-116815? +

OpenPanel before 3.0.0 contains an improper escaping vulnerability in sankey.service.ts that allows authenticated project members to break ClickHouse string literals by supplying backslashes in event names. Attackers with read access can submit crafted events[].name values to the chart.sankey procedure, causing ClickHouse parse errors that disable the project's Sankey chart endpoint. It has a CVSS v3.1 base score of 4.3 (MEDIUM).

How severe is CVE-2026-116815? +

CVE-2026-116815 has a CVSS v3.1 score of 4.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

How do I check if I'm vulnerable to CVE-2026-116815? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2026-116815