CVE-2026-32966: Apache DolphinScheduler Remote Code Execution Vulnerability

CRITICAL
Advisory Identifier: GHSA-r989-cjhx-3v49
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CVSS 9.8
CWE-863
Published
Advisory Summary

CVE-2026-32966 is a CRITICAL (CVSS 9.8) remote code execution vulnerability (CWE-863: Incorrect Authorization) affecting Apache DolphinScheduler libraries in the Maven ecosystem. The issue involves datasource api missing authorization check leads to arbitrary data source metadata disclosure. Remediation is available by upgrading affected packages to version 3.4.2.

CVE-2026-32966 at a Glance

CVE Identifier CVE-2026-32966
GHSA Identifier GHSA-r989-cjhx-3v49
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification CWE-863: Incorrect Authorization
Affected Product Apache DolphinScheduler
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 9.8

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2026-32966

To remediate this vulnerability, upgrade all affected Apache DolphinScheduler dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

org.apache.dolphinscheduler:dolphinscheduler-api fixed: 3.4.2 
<dependency>
    <groupId>org.apache.dolphinscheduler</groupId>
    <artifactId>dolphinscheduler-api</artifactId>
    <version>3.4.2</version>
</dependency>
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree -Dincludes=org.apache.dolphinscheduler

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2026-32966, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=org.apache.dolphinscheduler

Analyze the terminal output to locate any version of Apache DolphinScheduler in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 3.4.2), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.apache.dolphinscheduler command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-863: Incorrect Authorization, where the product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. In Apache DolphinScheduler, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

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.

CVE-2026-32966 Affected Apache DolphinScheduler Versions

1 component(s)
Fixed Versions:
3.4.2
Product / Package Ecosystem Affected Versions Fixed Version
org.apache.dolphinscheduler:dolphinscheduler-api
maven/org.apache.dolphinscheduler/dolphinscheduler-api
Maven
< 3.4.2
3.4.2

References

NVD — CVE-2026-32966 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-32966
Apache DolphinScheduler Source Repository REPOSITORY
https://github.com/apache/dolphinscheduler
lists.apache.org/thread/4f1fojpj26z9... WEB
https://lists.apache.org/thread/4f1fojpj26z9y5nd1ko845gcknpn75g2
Apache DolphinScheduler Security Information SECURITY
http://www.openwall.com/lists/oss-security/2026/06/17/2

Frequently Asked Questions

What is CVE-2026-32966?
CVE-2026-32966 is a security vulnerability in Apache DolphinScheduler involving DataSource API Missing Authorization Check Leads to Arbitrary Data Source Metadata Disclosure under CWE-863: Incorrect Authorization.
Which Apache DolphinScheduler versions are affected?
Affected versions include releases prior to 3.4.2 across affected packages: org.apache.dolphinscheduler:dolphinscheduler-api.
What version fixes CVE-2026-32966?
Upgrading to 3.4.2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is dolphinscheduler-api affected?
Yes, org.apache.dolphinscheduler:dolphinscheduler-api is affected in releases prior to 3.4.2. Upgrade your dependency to 3.4.2 or later.
What is the CVSS score of CVE-2026-32966?
CVE-2026-32966 has a CVSS v3.1 base score of 9.8 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-32966?
CVE-2026-32966 is classified under CWE-863: Incorrect Authorization (The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.).
How can I check Maven dependencies for CVE-2026-32966?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.apache.dolphinscheduler'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-r989-cjhx-3v49",
  "modified" : "2026-06-18T14:32:19Z",
  "published" : "2026-06-17T18:35:48Z",
  "aliases" : [ "CVE-2026-32966" ],
  "summary" : "Apache DolphinScheduler: DataSource API Missing Authorization Check Leads to Arbitrary Data Source Metadata Disclosure ",
  "details" : "DataSource API Missing Authorization Check Leads to Arbitrary Data Source Metadata Disclosure in Apache DolphinScheduler.\n\nThis issue affects Apache DolphinScheduler: before 3.4.2.\n\nUsers are recommended to upgrade to version 3.4.2, which fixes the issue.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.apache.dolphinscheduler:dolphinscheduler-api"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "3.4.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-32966"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/apache/dolphinscheduler"
  }, {
    "type" : "WEB",
    "url" : "https://lists.apache.org/thread/4f1fojpj26z9y5nd1ko845gcknpn75g2"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2026/06/17/2"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-863" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-06-18T14:32:18Z",
    "nvd_published_at" : "2026-06-17T13:20:16Z"
  }
}