CVE-2026-71895 Apache Software Foundation CVE debrief

Who should care

DolphinScheduler administrators and users with access to Kubernetes configuration data should assess exposure and upgrade to version 3.4.3 to fix the issue. This includes operators managing DolphinScheduler deployments, platform administrators responsible for Kubernetes configuration, vulnerability management teams, and security teams monitoring for potential threats. These stakeholders should review the current DolphinScheduler version, assess the impact,

Why it matters

Apache DolphinScheduler's authorization vulnerability allows authenticated non-admin users to retrieve Kubernetes configuration data, potentially leading to unauthorized access to Kubernetes resources. Administrators should assess exposure and upgrade to version 3.4.3.

• Authenticated non-admin users can retrieve Kubernetes configuration data
• Exposed kubeconfig data contains credentials for Kubernetes API authentication
• Potential for reading Kubernetes Secrets, creating pods, and establishing persistent access to the cluster
• Upgrade to version 3.4.3 is recommended to fix the issue

Technical summary

Apache DolphinScheduler's authorization vulnerability allows authenticated non-admin users to retrieve Kubernetes configuration data intended for administrator-managed cluster configuration. The exposed kubeconfig data contains credentials that may allow users to authenticate directly to the Kubernetes API outside DolphinScheduler. This issue affects Apache DolphinScheduler from version 3.2.0 before 3.4.3.

Defensive priority

Upgrade to version 3.4.3 to fix the issue. Assess exposure based on current DolphinScheduler version and Kubernetes configuration.

Recommended defensive actions

• Upgrade Apache DolphinScheduler to version 3.4.3
• Assess current DolphinScheduler version and Kubernetes configuration for exposure
• Verify kubeconfig data for sensitive credentials
• 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
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and source item provide details on the authorization vulnerability in Apache DolphinScheduler. The vendor, Apache Software Foundation, has provided an affected version range and recommended upgrade version.

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.