High severity · published Oct 8, 2026
CVE-2026-66087
Apache DolphinScheduler: Project Authorization Bypass in the Task instance stop/savepoint Endpoint
8.1
CVSS
0.3%
EPSS
No
On KEV
Description
An authorization bypass vulnerability in Apache DolphinScheduler allows authenticated users to operate task instance in projects they are not authorized to access through the
* /dolphinscheduler/projects/{projectCode}/task-instances/{taskInstanceId}/stop
* /dolphinscheduler/projects/{projectCode}/task-instances/{taskInstanceId}/savepoint
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:H/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 20% 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-2026-66087
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-66087
vendor-advisory
https://lists.apache.org/thread.html/pghhb42sbyv5dhx6clcj4hllxnh7c0dn
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