What is CVE-2026-32966?

CVE-2026-32966 is a critical-severity vulnerability in Apache Dolphinscheduler, classified under Incorrect Authorization. CVSS score: 9.8/10. Published 2026-06-17.

How severe is CVE-2026-32966?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Auth bypass in Apache Dolphinscheduler

CVE-2026-32966

DataSource API Missing Authorization Check Leads to Arbitrary Data Source Metadata Disclosure 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.

Vulnerability class: Broken Access Control

Published 2026-06-17 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.007 (49.4th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 49.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.007 · change: +0.003

Affected products

Apache Dolphinscheduler
Apache Software Foundation Dolphinscheduler — versions 0

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

lists.apache.org/thread/4f1fojpj26z9y5nd1ko845gcknpn75g2 (vendor-advisory, Mailing List, Vendor Advisory)
af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2026-32966?: CVE-2026-32966 is a critical-severity vulnerability in Apache Dolphinscheduler, classified under Incorrect Authorization. CVSS score: 9.8/10. Published 2026-06-17.
How severe is CVE-2026-32966?: Critical severity. CVSS v3 base score is 9.8 out of 10.