---
title: "CVE-2026-32966: Apache DolphinScheduler: DataSource API Missing Authorization Check Leads to Arbitrary Data Source Metadata Disclosure"
url: https://erroneo.us/security/cve/CVE-2026-32966/
description: "CVE-2026-32966 (org.apache.dolphinscheduler:dolphinscheduler-api (Maven)): DataSource API Missing Authorization Check Leads to Arbitrary Data Source…"
type: vulnerability-record
section: "Security Digest"
date_published: 2026-06-17
date_modified: 2026-06-18
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2026-32966"
kev: false
cvss: 7.5
epss: 0.00655
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2026-32966: Apache DolphinScheduler: DataSource API Missing Authorization Check Leads to Arbitrary Data Source Metadata Disclosure

**Signal:** Normal patch cycle. No exploitation signal; fix it in your next routine update if you are affected. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- No confirmed exploitation. It is not in CISA’s KEV catalog and CISA’s SSVC assessment records no known exploitation. That can change quickly after a public write-up; re-check if you are affected.
- EPSS 0.7% , percentile 51: FIRST’s model estimates a 0.7% chance of exploitation activity in the next 30 days, higher than 51% of all scored CVEs (moderate). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes org.apache.dolphinscheduler:dolphinscheduler-api (Maven) < 3.4.2, fixed in 3.4.2 . Check your lockfile, including transitive dependencies.

## What it is

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.

## Affected packages

- Maven `org.apache.dolphinscheduler:dolphinscheduler-api` < 3.4.2 → fixed: 3.4.2

## Affected products (CVE record)

- Apache Software Foundation Apache DolphinScheduler: < 3.4.2

## Severity

- CISA-ADP CVSS 3.1: 7.5 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`
- GitHub CVSS 3.1: 9.8 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation none , automatable yes , technical impact partial .
- FIRST EPSS (model of 2026-10-21): 0.66% probability of exploitation activity in the next 30 days; percentile 51.

## Sources

- [lists.apache.org](https://lists.apache.org/thread/4f1fojpj26z9y5nd1ko845gcknpn75g2)
- [GitHub Advisory GHSA-r989-cjhx-3v49](https://github.com/advisories/GHSA-r989-cjhx-3v49)
- [CVE.org record CVE-2026-32966](https://www.cve.org/CVERecord?id=CVE-2026-32966)
- [NVD entry CVE-2026-32966](https://nvd.nist.gov/vuln/detail/CVE-2026-32966)
- [openwall.com](http://www.openwall.com/lists/oss-security/2026/06/17/2)

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Source page: https://erroneo.us/security/cve/CVE-2026-32966/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt