What is CVE-2026-71898?

CVE-2026-71898 is a medium-severity vulnerability in Apache Software Foundation Dolphinscheduler, classified under Incorrect Authorization. CVSS score: 4.3/10. Published 2026-09-29.

How severe is CVE-2026-71898?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in Apache Software Foundation Dolphinscheduler

CVE-2026-71898

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.

Vulnerability class: Broken Access Control

Published 2026-09-29 · last modified 2026-09-29.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Apache Software Foundation Dolphinscheduler

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

lists.apache.org/thread/lt35p8xc1w7ovgq68g4zz1c8vnk5ow6o (vendor-advisory)
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2026-71898?: CVE-2026-71898 is a medium-severity vulnerability in Apache Software Foundation Dolphinscheduler, classified under Incorrect Authorization. CVSS score: 4.3/10. Published 2026-09-29.
How severe is CVE-2026-71898?: Medium severity. CVSS v3 base score is 4.3 out of 10.