CVE-2026-23983: Apache Superset: Sensitive Data Exposure via REST API (disabled by default)
A Sensitive Data Exposure vulnerability exists in Apache Superset allowing authenticated users to retrieve sensitive user information. The Tag endpoint (disabled by default) allows users to retrieve a list of objects associated with a specific tag. When these associated objects include Users, the API response improperly serializes and returns sensitive fields, including password hashes (pbkdf2), email addresses, and login statistics. This vulnerability allows authenticated users with low privileges (e.g., Gamma role) to view sensitive authentication data
This issue affects Apache Superset: before 6.0.0.
Users are recommended to upgrade to version 6.0.0, which fixes the issue or make sure TAGGINGSYSTEM is False (Apache Superset current default)
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-23983?
The severity of CVE-2026-23983 is considered to be moderate, given the potential for sensitive data exposure.
How can I fix CVE-2026-23983?
To mitigate CVE-2026-23983, ensure that the Tag endpoint is disabled and restrict access to sensitive endpoints in Apache Superset.
Who is affected by CVE-2026-23983?
CVE-2026-23983 affects authenticated users of Apache Superset versions prior to 6.0.0.
What kind of data is exposed in CVE-2026-23983?
CVE-2026-23983 allows authenticated users to retrieve sensitive user information through the Tag endpoint.
Is the Tag endpoint enabled by default in CVE-2026-23983?
No, the Tag endpoint related to CVE-2026-23983 is disabled by default.