EUVD-2026-88817
GHSA-7jf5-57qv-9q6r
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Remote API call (AV:N/AC:L), requires an authenticated read-only project user so PR:L; integrity-only impact (unauthorized workflow-instance modification) with no confidentiality or availability loss.
Primary rating from Vendor (apache).
CVSS VectorVendor: apache
Lifecycle Timeline
4DescriptionCVE.org
An incorrect authorization check in Apache DolphinScheduler allows an authenticated user with only read permission for a project to modify a workflow instance in that project through the PUT /projects/{projectCode}/workflow-instances/{id} endpoint. The endpoint does not enforce the write permission required for this operation, allowing the user to make unauthorized changes to workflow instances.
This issue affects Apache DolphinScheduler: before 3.4.3.
Users are recommended to upgrade to version 3.4.3, which fixes the issue.
AnalysisAI
Incorrect authorization in Apache DolphinScheduler before 3.4.3 allows an authenticated user who holds only read permission on a project to modify workflow instances inside that same project by sending a request to the PUT /projects/{projectCode}/workflow-instances/{id} endpoint, which fails to enforce the write permission the operation requires. The flaw is assessed as CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N, meaning remote, authenticated, low-complexity exploitation with a limited integrity impact and no confidentiality or availability impact; the attacker must already possess valid credentials and read access to the target project, so exposure is largely limited to insiders or compromised low-privilege accounts. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires an authenticated DolphinScheduler account that has been granted read permission on the target project; the attacker then calls PUT /projects/{projectCode}/workflow-instances/{id}, which fails to enforce the write permission normally required to modify workflow instances. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a genuine but low-severity authorization flaw, not a high-impact priority. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Vendor-released patch: 3.4.3. … Detailed patch versions, workarounds, and compensating controls in full report. |
Threat intelligence, references, and detailed analysis are available after sign-in.
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External POC / Exploit Code
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