Auth bypass in Apache Superset
CVE-2026-23984
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.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.004 (27.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 27th percentile — 27.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.000
Affected products
- Apache Superset
- Apache Software Foundation Superset — versions 0.0.0
Weakness classification (CWE)
References
- lists.apache.org/thread/72cmgxtvp9pclto4ln1chbs1227nwd26 (vendor-advisory, Mailing List)
- af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2026-23984?
- CVE-2026-23984 is a medium-severity vulnerability in Apache Superset, classified under Incorrect Authorization. CVSS score: 6.5/10. Published 2026-02-24.
- How severe is CVE-2026-23984?
- Medium severity. CVSS v3 base score is 6.5 out of 10.