CVE-2026-66083: CWE-306 Missing authentication for critical function in Apache Software Foundation Apache DolphinScheduler
The /datasources/unauth-datasource endpoint does not properly enforce data source authorization. An authenticated user can invoke this endpoint to obtain information about data sources they are not authorized to access. This may expose data source configuration and other sensitive metadata, depending on the fields returned by the endpoint. This issue affects Apache DolphinScheduler: before 3.4.3. Users are recommended to upgrade to version 3.4.3, which fixes the issue.
AI Analysis
Technical Summary
The vulnerability identified as CVE-2026-66083 in Apache DolphinScheduler involves missing authentication checks on the /datasources/unauth-datasource endpoint. This allows authenticated users to retrieve data source information beyond their authorization scope, exposing sensitive metadata. The flaw is classified under CWE-306 (Missing Authentication for Critical Function). The issue affects all versions prior to 3.4.3, which includes versions from 0 up to but not including 3.4.3. The vendor has released version 3.4.3 to address this vulnerability.
Potential Impact
Authenticated users can access data source configurations and sensitive metadata they should not be authorized to see. This exposure could lead to information disclosure risks, potentially aiding further attacks or unauthorized data access within the affected environment.
Mitigation Recommendations
Users should upgrade Apache DolphinScheduler to version 3.4.3 or later, where the issue has been fixed. No additional mitigation steps are indicated by the vendor advisory.
CVE-2026-66083: CWE-306 Missing authentication for critical function in Apache Software Foundation Apache DolphinScheduler
Description
The /datasources/unauth-datasource endpoint does not properly enforce data source authorization. An authenticated user can invoke this endpoint to obtain information about data sources they are not authorized to access. This may expose data source configuration and other sensitive metadata, depending on the fields returned by the endpoint. This issue affects Apache DolphinScheduler: before 3.4.3. Users are recommended to upgrade to version 3.4.3, which fixes the issue.
Affected software
Apache Software Foundation
Apache DolphinScheduler
pkg:maven/Apache Software Foundation/org.apache.dolphinscheduler:dolphinscheduler-apiRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability identified as CVE-2026-66083 in Apache DolphinScheduler involves missing authentication checks on the /datasources/unauth-datasource endpoint. This allows authenticated users to retrieve data source information beyond their authorization scope, exposing sensitive metadata. The flaw is classified under CWE-306 (Missing Authentication for Critical Function). The issue affects all versions prior to 3.4.3, which includes versions from 0 up to but not including 3.4.3. The vendor has released version 3.4.3 to address this vulnerability.
Potential Impact
Authenticated users can access data source configurations and sensitive metadata they should not be authorized to see. This exposure could lead to information disclosure risks, potentially aiding further attacks or unauthorized data access within the affected environment.
Mitigation Recommendations
Users should upgrade Apache DolphinScheduler to version 3.4.3 or later, where the issue has been fixed. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apache
- Date Reserved
- 2026-07-24T02:02:07.591Z
- State
- PUBLISHED
Threat ID: 6abba914f7a7c54106570c0c
Added to database: 09/29/2026, 12:03:32 UTC
Last enriched: 09/29/2026, 12:17:59 UTC
Last updated: 09/29/2026, 18:00:32 UTC
Views: 12
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