CVE-2026-23984: Apache Superset Read-Only Bypass Vulnerability

HIGH
Advisory Identifier: GHSA-mwf2-qr4v-94h2
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CWE-200 CWE-863
Published
Advisory Summary

CVE-2026-23984 is a HIGH read-only bypass vulnerability (CWE-200: Exposure of Sensitive Information to an Unauthorized Actor) affecting Apache Superset libraries in the PyPI ecosystem. The issue involves read-only bypass via improper input validation on postgresql connections. Remediation is available by upgrading affected packages to version 6.0.0.

CVE-2026-23984 at a Glance

CVE Identifier CVE-2026-23984
GHSA Identifier GHSA-mwf2-qr4v-94h2
Severity HIGH
CVSS v3.1 Base Score N/A
CWE Classification CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
Affected Product Apache Superset
Package Ecosystem PyPI
Published Date
Last Updated

How to Fix CVE-2026-23984

To remediate this vulnerability, upgrade all affected Apache Superset dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

apache-superset fixed: 6.0.0 
pip install apache-superset>=6.0.0
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show apache-superset

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2026-23984, inspect your installed packages using pip:

pip show apache-superset

Analyze the terminal output to locate any version of Apache Superset in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 6.0.0), your application is affected.

Note: The pip show apache-superset command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor, where the product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. In Apache Superset, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

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.

CVE-2026-23984 Affected Apache Superset Versions

1 component(s)
Fixed Versions:
6.0.0
Product / Package Ecosystem Affected Versions Fixed Version
apache-superset
pypi/apache-superset
PyPI
< 6.0.0
6.0.0

References

NVD — CVE-2026-23984 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-23984
Apache Superset Source Repository REPOSITORY
https://github.com/apache/superset
lists.apache.org/thread/72cmgxtvp9pc... WEB
https://lists.apache.org/thread/72cmgxtvp9pclto4ln1chbs1227nwd26
Apache Superset Security Information SECURITY
http://www.openwall.com/lists/oss-security/2026/02/24/8

Frequently Asked Questions

What is CVE-2026-23984?
CVE-2026-23984 is a security vulnerability in Apache Superset involving Read-Only Bypass via Improper Input Validation on PostgreSQL Connections under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor.
Which Apache Superset versions are affected?
Affected versions include releases prior to 6.0.0 across affected packages: apache-superset.
What version fixes CVE-2026-23984?
Upgrading to 6.0.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is apache-superset affected?
Yes, apache-superset is affected in releases prior to 6.0.0. Upgrade your dependency to 6.0.0 or later.
What CWE is associated with CVE-2026-23984?
CVE-2026-23984 is classified under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor (The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.).
How can I check PyPI dependencies for CVE-2026-23984?
Run the dependency tree command: 'pip show apache-superset'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-mwf2-qr4v-94h2",
  "modified" : "2026-02-26T15:29:01Z",
  "published" : "2026-02-24T15:30:30Z",
  "aliases" : [ "CVE-2026-23984" ],
  "summary" : "Apache Superset: Read-Only Bypass via Improper Input Validation on PostgreSQL Connections",
  "details" : "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.\nWhile 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.\n\nThis issue affects Apache Superset: before 6.0.0.\n\nUsers are recommended to upgrade to version 6.0.0, which fixes the issue.",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "apache-superset"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "6.0.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-23984"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/apache/superset"
  }, {
    "type" : "WEB",
    "url" : "https://lists.apache.org/thread/72cmgxtvp9pclto4ln1chbs1227nwd26"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2026/02/24/8"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-200", "CWE-863" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-02-26T15:29:00Z",
    "nvd_published_at" : "2026-02-24T14:16:23Z"
  }
}