What’s Vulnerable › Vulnerabilities

CVE-2026-23984: Apache Superset: SQLLab Read-Only Bypass on PostgreSQL

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-02-24 · updated 2026-06-17
• Weakness: CWE-863

Description

An Improper Input Validation vulnerability exists in Apache Superset that allows an authenticated user with SQLLab access to bypass the read-only verification check when using a PostgreSQL database connection. While the system effectively blocks standard Data Manipulation Language (DML) statements (e.g., INSERT, UPDATE, DELETE) on read-only connections, it fails to detect them in specially crafted SQL statements. This issue affects Apache Superset: before 6.0.0. Users are recommended to upgrade to version 6.0.0, which fixes the issue.

Affected products

• Apache Superset: before 6.0.0 — fixed in 6.0.0

How to fix

Upgrade to a fixed version: Apache Superset 6.0.0. Check the vendor advisory for mitigations.

References

• https://lists.apache.org/thread/72cmgxtvp9pclto4ln1chbs1227nwd26
• http://www.openwall.com/lists/oss-security/2026/02/24/8

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