Apache Superset ClickHouse SQL Function Restriction Bypass <4.1.2
CVE-2026-23969 Published on February 24, 2026
Apache Superset: Exposure of Sensitive Information via Incomplete ClickHouse Function Filtering
Apache Superset utilizes a configurable dictionary, DISALLOWED_SQL_FUNCTIONS, to restrict the execution of potentially sensitive SQL functions within SQL Lab and charts. While this feature included restrictions for engines like PostgreSQL, a vulnerability was reported where the default list for the ClickHouse engine was incomplete.
This issue affects Apache Superset: before 4.1.2.
Users are recommended to upgrade to version 4.1.2, which fixes the issue.
Weakness Type
What is a SQL Injection Vulnerability?
The software constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component.
CVE-2026-23969 has been classified to as a SQL Injection vulnerability or weakness.
Products Associated with CVE-2026-23969
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Affected Versions
Apache Software Foundation Apache Superset:- Version 0.0.0 and below 4.1.2 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.