CVE-2026-71899

Status: DeferredMedium (6.5)—

A missing authorization vulnerability exists in the `query-dynamic-sub-workflows` API of Apache DolphinScheduler. The API does not properly verify whether the authenticated user has permission to access the workflows being queried.

An authenticated user who does not have permission to access a specific project can invoke the API with parameters referencing workflows belonging to that project and retrieve workflow information. This allows users to access workflow data outside their authorized project scope, resulting in unauthorized information disclosure.

This issue affects Apache DolphinScheduler: from 3.2.0 before 3.4.3.

Read full descriptionShow less

Users are recommended to upgrade to version 3.4.3, which fixes the issue.

CVSS

Version: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Base score: 6.5

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 0.23%
Percentile among all scored CVEs: 13
Score date: 10/5/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

🎯 ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

ExploitationT1210 Exploitation of Remote Serviceslateral movement65 %
Primary impactT1078 Valid Accountsstealth · persistence · privilege escalation · initial access75 %
Secondary impactT1005 Data from Local Systemcollection70 %

Usuario autenticado sin privilegios (AV:N, PR:L) accede a API sin validación de autorización (CWE-863, CWE-862) para extraer datos de workflows (C:H), explotando aplicación expuesta en consulta directa.

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

🛡️ ATT&CK mitigations that cover these techniques

Privileged Account Management Application Developer Guidance Active Directory Configuration Vulnerability Scanning User Training User Account Management

Affected technologies (1)

⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.

Apache — Dolphinscheduler^AI

CWEs

CWE-863
CWE-862

References

Raw JSON (NVD)

Show

{
  "id": "CVE-2026-71899",
  "cveTags": [],
  "metrics": {
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          "options": [
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          "version": "2.0.3",
          "timestamp": "2026-10-01T15:58:39.599903Z"
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          "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"
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        "impactScore": 3.6,
        "exploitabilityScore": 2.8
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  "affected": [
    {
      "source": "security@apache.org",
      "affectedData": [
        {
          "vendor": "Apache Software Foundation",
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          "versions": [
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  "published": "2026-09-29T14:17:21.190",
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      "value": "A missing authorization vulnerability exists in the `query-dynamic-sub-workflows` API of Apache DolphinScheduler. The API does not properly verify whether the authenticated user has permission to access the workflows being queried.\n\n\n\nAn authenticated user who does not have permission to access a specific project can invoke the API with parameters referencing workflows belonging to that project and retrieve workflow information. This allows users to access workflow data outside their authorized project scope, resulting in unauthorized information disclosure.\n\n\n\nThis issue affects Apache DolphinScheduler: from 3.2.0 before 3.4.3.\n\n\n\nUsers are recommended to upgrade to version 3.4.3, which fixes the issue."
    }
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  "lastModified": "2026-10-01T16:17:50.107",
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