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Medium severity · published Feb 24, 2026
CVE-2026-23984
Apache Superset: SQLLab Read-Only Bypass on PostgreSQL
6.5
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 35% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AS
Apache Superset · Apache Software Foundation
0.0.0 before 6.0.0 · source: vendor
SU
Superset · Apache
before 6.0.0 · source: NVD
Affected product
AS
Apache Superset
Apache Software Foundation
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-23984
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-23984
Mailing List
https://lists.apache.org/thread/72cmgxtvp9pclto4ln1chbs1227nwd26
Mailing List
http://www.openwall.com/lists/oss-security/2026/02/24/8
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