Advisory severityHigh8.1Apache Software Foundation Updated

High [CVE-2026-66084] authorization bypass vulnerability in Apache DolphinScheduler allows authenticated users to modify task definitions in projects they are not authorized to access through the /dolphinscheduler/projects/{projectCode}/task-definition/{code}/with-upstream endpoint

This high-severity Apache Software Foundation advisory covers CVE-2026-66084 affecting Apache DolphinScheduler.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-66084 Source published Oct 8, 2026Source updated Oct 8, 2026

VulniPulse record published Oct 8, 2026Record updated Oct 8, 2026

CVE-2026-66084

Affected products & platforms

Apache Software FoundationUnclassified

Open source advisory

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Summary

An authorization bypass vulnerability in Apache DolphinScheduler allows authenticated users to modify task definitions in projects they are not authorized to access through the /dolphinscheduler/projects/{projectCode}/task-definition/{code}/with-upstream endpoint.

The endpoint fails to verify that the task definition identified by code belongs to the project specified by projectCode.

An authenticated user can supply the code of a project they are authorized to access together with a task definition code from another project, bypassing project access restrictions and modifying the target task definition and its upstream dependencies.

This vulnerability can compromise workflow integrity and disrupt task execution in unauthorized projects. This issue affects Apache DolphinScheduler: before 3.4.3.

Users are recommended to upgrade to version 3.4.3, which fixes the issue.

Affected versions

Apache DolphinScheduler before 3.4.3

Official advisory · high-confidence parse· fetched 2 days ago·verify at source

Fixed versions

3.4.3

Official advisory · high-confidence parse· fetched 2 days ago·verify at source

Mitigation checklist

Recommended fix / mitigation

Users are recommended to upgrade to version 3.4.3, which fixes the issue.

Official advisory · high-confidence parse· fetched 2 days ago·verify at source

Sources

Official and corroborating records used to build this advisory.

Official vendor advisoryofficial
Official advisory page fetched and parsed; accepted detail fields are attributed to this page.
Apache Software Foundation
CVE.org CNA recordCVE.org
Independent CNA record used for near-real-time discovery and missed-CVE reconciliation. Discovered from the machine-readable feed https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/delta.json; this link opens the CVE.org record for CVE-2026-66084 instead of the raw feed document.
CVE Program

Cross-references

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CVE-2026-66084NVD CVE.org MITRE

Official resources

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Official documentation
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Apache project downloads (fixed releases)
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