CVE-2026-23969Network attack vector

Metadata disclosure via incomplete ClickHouse function filtering

Published Feb 24, 2026 · Updated Feb 24, 2026

SQL injection in Apache Superset before 4.1.2 allows remote authenticated users to disclose ClickHouse server metadata through SQL Lab or charts. The default DISALLOWED_SQL_FUNCTIONS entry for ClickHouse omits version, currentDatabase, and hostName, so the query check permits those functions. A ClickHouse connection and permission to submit SQL Lab or chart queries are required; exposure is limited to the server version, database name, and host name.

CVSS severity5.3
Medium
EPSS probability0.61%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SQL injection in Apache Superset before 4.1.2 allows remote authenticated users to disclose ClickHouse server metadata through SQL Lab or charts. The default DISALLOWED_SQL_FUNCTIONS entry for ClickHouse omits version, currentDatabase, and hostName, so the query check permits those functions. A ClickHouse connection and permission to submit SQL Lab or chart queries are required; exposure is limited to the server version, database name, and host name.

The record

CVE
CVE-2026-23969
Published
Feb 24, 2026
Updated
Feb 24, 2026
Vendor
The Apache Software Foundation
Product
Apache Superset
Classifications
CWE-89
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 24, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0.0.0 <4.1.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

The Apache Software Foundation · Apache Supersetversion=0.0.0 <4.1.2

Published CVSS scores

6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
5.3Apache Software FoundationCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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