VYPR
Unrated severityNVD Advisory· Published Jun 17, 2026

Apache DolphinScheduler: An incorrect authorization vulnerability allows authenticated users to access alert instances associated with alert groups they do not have permission to access.

CVE-2026-47340

Description

Allow authenticated users to access alert instances associated with alert groups they do not have permission to access. in Apache DolphinScheduler.

This issue affects Apache DolphinScheduler: before 3.4.2.

Users are recommended to upgrade to version 3.4.2, which fixes the issue.

Affected products

1

Patches

Vulnerability mechanics

Root cause

"Missing authorization check when fetching alert instances allows a user to view alerts belonging to groups they are not permitted to access."

Attack vector

An authenticated user can query alert instances that belong to alert groups for which they lack explicit permission. The advisory does not specify the exact API endpoint or payload shape, but the precondition is that the attacker must have a valid session on the DolphinScheduler instance. No special network position beyond normal application access is required.

Affected code

The patch only updates version strings and POM metadata across the DolphinScheduler Maven project (e.g., `pom.xml`, `dolphinscheduler-alert-*/pom.xml`). It does **not** contain any source-code changes to alert-group authorization logic. The advisory states the vulnerability exists in versions before 3.4.2, but the commit shown is purely a release-version bump.

What the fix does

The provided patch (`patch_id=6329128`) only increments the project version from `dev-SNAPSHOT` to `3.4.2` and updates the SCM tag; it does **not** include any code changes that address the missing authorization check. The advisory recommends upgrading to version 3.4.2, implying the real fix is in a different commit that is not included in this bundle.

Preconditions

  • authThe attacker must have a valid authenticated session on the DolphinScheduler instance.
  • networkThe attacker must be able to send requests to the alert-instance API endpoints.

Generated on Jun 17, 2026. Inputs: CWE entries + fix-commit diffs from this CVE's patches. Citations validated against bundle.

References

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News mentions

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