Chartbrew up to 5.2.2 AI Query Tool incomplete blacklist

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Chartbrew up to 5.2.2. The impacted element is an unknown function of the component AI Query Tool. Performing a manipulation results in incomplete blacklist. This vulnerability was named CVE-2026-69128. The attack may be initiated remotely. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in Chartbrew up to 5.2.2. This affects an unknown functionality of the component AI Query Tool. The manipulation with an unknown input leads to a incomplete blacklist vulnerability. CWE is classifying the issue as CWE-184. The product implements a protection mechanism that relies on a list of inputs (or properties of inputs) that are not allowed by policy or otherwise require other action to neutralize before additional processing takes place, but the list is incomplete. This is going to have an impact on confidentiality. The summary by CVE is:

Chartbrew is an open-source web application that can connect directly to databases and APIs and use the data to create charts. In 5.2.2, the AI SQL blocklist omitted sibling PostgreSQL filesystem functions and failed to match double-quoted identifier forms of denied functions. The vulnerable surface is the AI query tool's PostgreSQL SQL-validation blocklist. A team Owner or Admin uses an AI-enabled PostgreSQL connection whose database role can call server-side file functions and causes generated SQL to use an unlisted sibling function or a double-quoted denied function. Unlisted sibling functions remain allowed, and double-quoted function identifiers bypass the denylist regular expressions and reach PostgreSQL. AI features must be enabled and the user must have elevated Chartbrew privileges. A PostgreSQL superuser or pg_read_server_files role can resolve absolute paths to files readable by the PostgreSQL OS user, while a non-superuser is limited to the source-stated PGDATA-relative scope. This vulnerability is fixed in 5.2.3.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-69128 since 08/03/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. Additional levels of successful authentication are necessary for exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1562.006 for this issue.

Upgrading to version 5.2.3 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

• Chartbrew

Version

• 5.2.0
• 5.2.1
• 5.2.2

Website

• Product: https://github.com/chartbrew/chartbrew/

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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