Vulnerability-Lookup

FKIE_CVE-2026-66084

Vulnerability from fkie_nvd - Published: 2026-10-08 09:16 - Updated: 2026-10-08 21:18

Severity

8.1 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Summary

An authorization bypass vulnerability in Apache DolphinScheduler allows authenticated users to modify task definitions in projects they are not authorized to access through the /dolphinscheduler/projects/{projectCode}/task-definition/{code}/with-upstream endpoint. The endpoint fails to verify that the task definition identified by code belongs to the project specified by projectCode. An authenticated user can supply the code of a project they are authorized to access together with a task definition code from another project, bypassing project access restrictions and modifying the target task definition and its upstream dependencies. This vulnerability can compromise workflow integrity and disrupt task execution in unauthorized projects.This issue affects Apache DolphinScheduler: before 3.4.3. Users are recommended to upgrade to version 3.4.3, which fixes the issue.

References

	URL	Tags
	security@apache.org	https://lists.apache.org/thread.html/cn6v1m8pfnjn7rsqkq1xow8v63pw27w2
	af854a3a-2127-422b-91ae-364da2661108	http://www.openwall.com/lists/oss-security/2026/10/08/2

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://repo.maven.apache.org/maven2",
          "defaultStatus": "unaffected",
          "packageName": "org.apache.dolphinscheduler:dolphinscheduler-api",
          "packageURL": "pkg:maven/org.apache.dolphinscheduler/dolphinscheduler-api",
          "product": "Apache DolphinScheduler",
          "vendor": "Apache Software Foundation",
          "versions": [
            {
              "lessThan": "3.4.3",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "security@apache.org"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An authorization bypass vulnerability in Apache DolphinScheduler allows authenticated users to modify task definitions in projects they are not authorized to access through the /dolphinscheduler/projects/{projectCode}/task-definition/{code}/with-upstream endpoint.\n\n\n\nThe endpoint fails to verify that the task definition identified by code belongs to the project specified by projectCode. An authenticated user can supply the code of a project they are authorized to access together with a task definition code from another project, bypassing project access restrictions and modifying the target task definition and its upstream dependencies.\n\n\n\nThis vulnerability can compromise workflow integrity and disrupt task execution in unauthorized projects.This 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."
    }
  ],
  "id": "CVE-2026-66084",
  "lastModified": "2026-10-08T21:18:01.973",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 8.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.2,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-66084",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-10-08T20:20:18.656783Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-10-08T09:16:41.783",
  "references": [
    {
      "source": "security@apache.org",
      "url": "https://lists.apache.org/thread.html/cn6v1m8pfnjn7rsqkq1xow8v63pw27w2"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.openwall.com/lists/oss-security/2026/10/08/2"
    }
  ],
  "sourceIdentifier": "security@apache.org",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-863"
        }
      ],
      "source": "security@apache.org",
      "type": "Secondary"
    }
  ]
}

CVE-2026-66084 (GCVE-0-2026-66084)

Vulnerability from cvelistv5 – Published: 2026-10-08 08:18 – Updated: 2026-10-08 20:20

Title

Apache DolphinScheduler: Project Authorization Bypass in the Task Definition with-upstream Endpoint

Summary

Severity

8.1 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-08 20:20 UTC

CWE

CWE-863 - Incorrect Authorization

Assigner

apache CNA under the mitre root

CNA scorecard B 76/100 over 936 records in the last 180 days details

References

2 references

URL	Tags
https://lists.apache.org/thread.html/cn6v1m8pfnjn…	vendor-advisory
http://www.openwall.com/lists/oss-security/2026/10/08/2

Impacted products

1 product

Vendor	Product	Version
Apache Software Foundation	Apache DolphinScheduler	Affected: 0 , < 3.4.3 (semver)

Credits

Han, JunGyu Thành Nguyễn Yeonoh Park @ CIS Lab, SeoulTech h1ei1 n0mi1k

Show details on NVD website

JSON

To clipboard

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          "dateUpdated": "2026-10-08T09:16:26.347Z",
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              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
              "version": "3.1"
            }
          },
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              "content": {
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                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-08T20:20:18.656783Z",
                "version": "2.0.3"
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          "dateUpdated": "2026-10-08T20:20:39.923Z",
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        },
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        },
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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