CVE-2026-66083

The /datasources/unauth-datasource endpoint does not properly enforce data source authorization. An authenticated user can invoke this endpoint to obtain information about data sources they are not authorized to access. This may expose data source configuration and other sensitive metadata, depending on the fields returned by the endpoint. This issue affects Apache DolphinScheduler: before 3.4.3. Users are recommended to upgrade to version 3.4.3, which fixes the issue.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://lists.apache.org/thread/b6brfom0jmy9kdt40qrn6dq0x4v2wxdr	Vendor Advisory
http://www.openwall.com/lists/oss-security/2026/09/29/19	Mailing List Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:apache:dolphinscheduler:*:*:*:*:*:*:*:*

History

06 Oct 2026, 14:37

Type	Values Removed	Values Added
First Time		Apache Apache dolphinscheduler
CPE		cpe:2.3:a:apache:dolphinscheduler::::::::
References	~~() https://lists.apache.org/thread/b6brfom0jmy9kdt40qrn6dq0x4v2wxdr -~~	() https://lists.apache.org/thread/b6brfom0jmy9kdt40qrn6dq0x4v2wxdr - Vendor Advisory
References	~~() http://www.openwall.com/lists/oss-security/2026/09/29/19 -~~	() http://www.openwall.com/lists/oss-security/2026/09/29/19 - Mailing List, Third Party Advisory

29 Sep 2026, 21:17

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 6.5

29 Sep 2026, 16:17

Type	Values Removed	Values Added
References		() http://www.openwall.com/lists/oss-security/2026/09/29/19 -

29 Sep 2026, 12:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-29 12:17

Updated : 2026-10-06 14:37

NVD link : CVE-2026-66083

Mitre link : CVE-2026-66083

CVE.ORG link : CVE-2026-66083

JSON object : View

Products Affected

apache

dolphinscheduler

CWE

CWE-306

Missing Authentication for Critical Function

{"id": "CVE-2026-66083", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-66083", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-09-29T20:15:39.129272Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 2.8}]}, "affected": [{"source": "security@apache.org", "affectedData": [{"vendor": "Apache Software Foundation", "product": "Apache DolphinScheduler", "versions": [{"status": "affected", "version": "0", "lessThan": "3.4.3", "versionType": "semver"}], "packageURL": "pkg:maven/org.apache.dolphinscheduler/dolphinscheduler-api", "packageName": "org.apache.dolphinscheduler:dolphinscheduler-api", "collectionURL": "https://repo.maven.apache.org/maven2", "defaultStatus": "unaffected"}]}], "published": "2026-09-29T12:17:10.967", "references": [{"url": "https://lists.apache.org/thread/b6brfom0jmy9kdt40qrn6dq0x4v2wxdr", "tags": ["Vendor Advisory"], "source": "security@apache.org"}, {"url": "http://www.openwall.com/lists/oss-security/2026/09/29/19", "tags": ["Mailing List", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security@apache.org", "description": [{"lang": "en", "value": "CWE-306"}]}], "descriptions": [{"lang": "en", "value": "The /datasources/unauth-datasource endpoint does not properly enforce data source authorization. An authenticated user can invoke this endpoint to obtain information about data sources they are not authorized to access. This may expose data source configuration and other sensitive metadata, depending on the fields returned by the endpoint.\n\n\n\nThis issue affects Apache DolphinScheduler: before 3.4.3.\n\n\n\nUsers are recommended to upgrade to version 3.4.3, which fixes the issue."}], "lastModified": "2026-10-06T14:37:36.163", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:apache:dolphinscheduler:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D828AF78-2DDC-4BEA-A8E6-E72DB2456AE4", "versionEndExcluding": "3.4.3"}], "operator": "OR"}]}], "sourceIdentifier": "security@apache.org"}