CVE-2026-42357: Apache DolphinScheduler incorrect authorization in workflow instances

CVE-2026-42357 · Severity: medium · CVSS 6.5 · Published 2026-06-17

Apache DolphinScheduler, a platform for managing complex data workflows, contains a security flaw where users can view workflow details they are not authorized to see. This could allow an internal user to access sensitive project information or operational data belonging to other teams. Organizations should upgrade to version 3.4.2 to ensure proper data isolation between projects.

Technologies: Apache Software Foundation DolphinScheduler, org.apache.dolphinscheduler:dolphinscheduler-api (Maven). Vendors: Apache Software Foundation, Maven.

Quick answers

Is CVE-2026-42357 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-42357 being exploited in the wild.
How severe is CVE-2026-42357?
Medium severity, with a CVSS score of 6.5, published 17 June 2026.
Which products and versions are affected?
Apache Software Foundation DolphinScheduler < 3.4.2, versions prior to 3.4.2; org.apache.dolphinscheduler:dolphinscheduler-api (Maven) < 3.4.2, ECOSYSTEM:introduced=0,fixed=3.4.2.
Is there a fix for CVE-2026-42357?
Yes. org.apache.dolphinscheduler:dolphinscheduler-api (Maven): upgrade to 3.4.2 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-42357 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-42357?
Check whether you run Apache Software Foundation DolphinScheduler or org.apache.dolphinscheduler:dolphinscheduler-api (Maven) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • org.apache.dolphinscheduler:dolphinscheduler-api (Maven): upgrade to 3.4.2 or later
    # set org.apache.dolphinscheduler:dolphinscheduler-api to 3.4.2 in your pom.xml or build.gradle

Technical details

An incorrect authorization vulnerability (CWE-863) exists in the Apache DolphinScheduler API. The root cause is a failure to properly validate project-level permissions when a user requests workflow instance information. An attacker with low-privileged network access can exploit this to bypass intended access controls and view sensitive workflow data belonging to other projects. The vulnerability is addressed in version 3.4.2 by implementing stricter authorization checks on the affected API endpoints.

Affected products

  • Apache DolphinScheduler < 3.4.2

Identifiers

  • CVE-2026-42357
  • GHSA-wv7f-c794-82v6

Timeline

  • 2026-06-17: disclosed
  • 2026-06-17: advisory
  • 2026-06-17: patched: Version 3.4.2 released

References

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