CVE-2026-71895: Apache DolphinScheduler: Missing Authorization Checks Allow Non-Admin Users to Retrieve Kubernetes Credentials
An authorization vulnerability in Apache DolphinScheduler 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.
The impact depends on the permissions granted to the disclosed credentials. If the kubeconfig provides cluster-admin or broadly privileged service-account access, an attacker may read Kubernetes Secrets, create pods, and establish persistent access to the cluster.
This issue affects Apache DolphinScheduler: from 3.2.0 before 3.4.3.
Users are recommended to upgrade to version 3.4.3, which fixes the issue.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Apache DolphinSchedulerto a version that resolves this vulnerability.Fixed in 3.4.3
Event History
Frequently Asked Questions
Which deployments are affected?
Apache DolphinScheduler versions from 3.2.0 before 3.4.3 are affected. Authenticated non-admin users are the relevant exposure population.
What does an attacker need to exploit this issue?
An attacker needs an authenticated non-admin DolphinScheduler account. They can then retrieve Kubernetes configuration data intended for administrator-managed cluster configuration.
How severe is exposure of the retrieved kubeconfig?
The impact depends on the Kubernetes permissions associated with the disclosed credentials. Cluster-admin or broadly privileged service-account credentials may allow access to Secrets, pod creation, and persistent cluster access.
What is the recommended remediation?
Upgrade Apache DolphinScheduler to version 3.4.3, which fixes the issue.