CVE-2026-71183 Apache Software Foundation CVE debrief

Who should care

Defenders and administrators of Apache DolphinScheduler instances should assess exposure and prioritize upgrading to version 3.4.3. They should review data source access controls and credentials, monitor for unauthorized access to data sources, and verify affected versions and remediation. Security teams and vulnerability management teams should also be aware of the potential security risks and take necessary actions to mitigate them.

Why it matters

CVE-2026-71183 allows authenticated users to obtain sensitive data source information and passwords in Apache DolphinScheduler. Defenders should prioritize upgrading to version 3.4.3 and review data source access controls.

• Disclosure of sensitive data source information
• Potential unauthorized access to underlying databases
• Need for verification of affected versions and remediation
• Priority for upgrading to version 3.4.3

Technical summary

Apache DolphinScheduler's /unauth-datasource and /authed-datasource endpoints fail to enforce required data source access controls, allowing authenticated users to obtain sensitive connection information, including data source passwords. This issue affects Apache DolphinScheduler versions before 3.4.3. The vulnerability enables unauthorized access to underlying databases using disclosed credentials. Successful exploitation exposes sensitive data source information and may enable unauthorized access to the underlying databases.

Defensive priority

Upgrade to version 3.4.3 to fix the issue.

Recommended defensive actions

• Upgrade Apache DolphinScheduler to version 3.4.3
• Review data source access controls and credentials
• Monitor for unauthorized access to data sources
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

The CVE record and source item provide details on the vulnerability. Further verification is needed to confirm affected versions and remediation. The official CVE Program record and NIST NVD detail page offer source-provided CVE metadata and vulnerability assessments. However, additional verification tasks are required to ensure accurate information and to identify potential security risks. The lack of authorization checks in Apache DolphinScheduler allows authenticated users to access sensitive data source information and passwords,

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.