# CVE-2026-81569: Apache DolphinScheduler: Improper Authorization in Sub-Workflow Tasks Allows Unauthorized Workflow Execution

> Authenticated users can bypass project permissions to execute unauthorized workflows and access associated data in Apache DolphinScheduler.

- **Severity:** Medium 4.3 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 29 Sep 2026
- **Updated:** 29 Sep 2026
- **Also known as:** GHSA-xhgf-wr45-fhhj

## What is CVE-2026-81569?

CVE-2026-81569 is a medium-severity missing authorization vulnerability in Apache DolphinScheduler, published on 29 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

An improper authorization vulnerability exists in the handling of sub-workflow tasks. An authenticated user who does not have permission to access a target project can reference and invoke a workflow belonging to that project through a sub-workflow task.

The system does not properly verify whether the user has permission to execute the referenced workflow or access its project. As a result, the user can bypass project-level authorization controls and cause workflows in unauthorized projects to be executed.

Successful exploitation may allow unauthorized execution of workflow tasks and access to the resources or data available to the target workflow.

This issue affects Apache DolphinScheduler: before 3.4.3.

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

Weakness: CWE-285 (Improper Authorization)

## Which versions are affected by CVE-2026-81569?


## How do I fix CVE-2026-81569?

No fix has been published for CVE-2026-81569 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-81569 being exploited?

There is no known exploitation of CVE-2026-81569 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-81569 and fix it if it is affected.

What it is: CVE-2026-81569 is a medium-severity missing authorization vulnerability in Apache DolphinScheduler, published on 29 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-81569 in the wild and no public exploit code.

Affected product: Apache DolphinScheduler. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-81569/ (Markdown: https://insights.sbomify.com/CVE-2026-81569/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-81569
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-81569
- OSV: https://osv.dev/vulnerability/CVE-2026-81569

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-81569/
Summaries are generated and may contain mistakes; the official description above is the record.