Medium severity · published Sep 29, 2026
CVE-2026-71898
Apache DolphinScheduler: Improper Authorization Allows Project Read-Only Users to Execute Workflows and Tamper with Workflow Definitions
4.3
CVSS
0.2%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 8% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AD
Apache DolphinScheduler · Apache Software Foundation
before 3.4.3 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-71898
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-71898
vendor-advisory
https://lists.apache.org/thread/lt35p8xc1w7ovgq68g4zz1c8vnk5ow6o
More from Apache DolphinScheduler
9.8
CVE-2026-32966
Apache DolphinScheduler: DataSource API Missing Authorization Check Leads to Arbitrary Data Source Metadata Disclosure
9.1
CVE-2026-32967
Apache DolphinScheduler: The `/v2` experimental interface lacks permission checks
8.8
CVE-2026-82804
Apache DolphinScheduler: Command Injection in the Alert Script Plugin
8.8
CVE-2026-49050
Apache DolphinScheduler: General user can mint admin access tokens via /access-tokens
8.1
CVE-2026-66087
Apache DolphinScheduler: Project Authorization Bypass in the Task instance stop/savepoint Endpoint