CVE-2026-42357Network attack vector

Cross-project workflow-instance information disclosure

Published Jun 17, 2026 · Updated Jun 17, 2026

Incorrect authorization in Apache DolphinScheduler before 3.4.2 allows remote authenticated users to read workflow-instance data across projects. Apache has not published the affected API locus or the authorization check that fails when a workflow instance belongs to another project. Any logged-in user with network access to the API can obtain confidential workflow execution information outside that user's project permissions; no write or service-interruption impact is reported.

CVSS severity6.5
Medium
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect authorization in Apache DolphinScheduler before 3.4.2 allows remote authenticated users to read workflow-instance data across projects. Apache has not published the affected API locus or the authorization check that fails when a workflow instance belongs to another project. Any logged-in user with network access to the API can obtain confidential workflow execution information outside that user's project permissions; no write or service-interruption impact is reported.

The record

CVE
CVE-2026-42357
Published
Jun 17, 2026
Updated
Jun 17, 2026
Vendor
The Apache Software Foundation
Product
Apache DolphinScheduler
Classifications
CWE-863, T1213
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 17, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 17, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <3.4.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

The Apache Software Foundation · Apache DolphinSchedulerversion=0 <3.4.1

Published CVSS scores

6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
6.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-863Incorrect Authorization
T1213Data from Information Repositories

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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