Apache DolphinScheduler: Unauthorized Disclosure of Data Source Information via /datasources/unauth-datasource
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-306.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA Apache DolphinScheduler (Apache Software Foundation) Fixed in 3.4.3
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Apache DolphinScheduler 3.4.3
7 records Highest priority Priority MEDIUM 1 MEDIUM, 6 LOW
Other records, highest priority first
- TI-2026-57119 Apache DolphinScheduler: Command Injection in the Alert Script PluginPriority MEDIUM 41
- TI-2026-54400 Apache DolphinScheduler: Actuator Endpoint Authentication Bypass via Percent-Encoded PathsPriority LOW 30
- TI-2026-50198 Apache DolphinScheduler: Missing Authorization in query-dynamic-sub-workflows API Leads to Information DisclosurePriority LOW 28
Timeline
- 2026-10-02 Threatist record created from CVE-2026-66083
- 2026-10-03 Alias added: GHSA-rjm2-8fmf-7h67
References
More Apache Dolphinscheduler vulnerabilities
- TI-2022-22673 Apache DolphinScheduler: Remote command execution Vulnerability in script alert plugin CVSS 3.1CRITICAL 9.8
- TI-2022-22425 Apache DolphinScheduler prior to 2.0.5 have command execution vulnerability CVSS 3.1CRITICAL 9.8
- TI-2024-28858 Apache DolphinScheduler: Remote Code Execution Vulnerability CVSS 3.1CRITICAL 9.8
- TI-2023-26774 Remote Code Execution in Apache Dolphinscheduler CVSS 3.1CRITICAL 9.8
- TI-2020-09634 Deserialization of untrusted data in Apache DolphinScheduler CVSS 3.1CRITICAL 9.8
- TI-2024-28837 Incorrect default permissions in Apache DolphinScheduler CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-66083 · CVE Program
- CVE-2026-66083 · NVD
- FIRST EPSS
- GHSA-rjm2-8fmf-7h67 · GitHub Advisory Database · CC BY 4.0
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