CVE-2026-42357: Incorrect Authorization vulnerability allows users to access workflow instance information belonging to projec

Q: How do I fix CVE-2026-42357?

dolphinscheduler: upgrade to 3.4.2. Exact commands for each OS are on this page.

Q: Is CVE-2026-42357 being exploited?

CVE-2026-42357 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-42357 affect?

CVE-2026-42357 affects dolphinscheduler. Severity is medium (CVSS 6.5). Incorrect Authorization vulnerability allows users to access workflow instance information belonging to projects they do not have permission to access. This issue affects Apache DolphinScheduler versions prior to 3.4.2. Users are recomme

Q: How urgent is CVE-2026-42357?

Priority 34/100. On your watchlist

Routine

MEDIUM 6.5WATCHLISTUPGRADE

CVE-2026-42357 is a medium-severity flaw (CVSS 6.5) affecting dolphinscheduler. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Incorrect Authorization vulnerability allows users to access workflow instance information belonging to projects they do not have permission to access. This issue affects Apache DolphinScheduler versions prior to 3.4.2. Users are recommended to upgrade to version 3.4.2, which fixes this issue.

Why this priority

On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 76%)
CISA exploited list	No
Weakness	CWE-863
Published	2026-06-17
Last modified	2026-10-26

Publisher (CNA): Apache Software Foundation · Vendor: apache

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-06-17 13:20 UTCPublished CVE record published
2026-10-26 11:10 UTCUpdated Record last modified

apache dolphinscheduler UPGRADE

Affected: < 3.4.2

Fixed in: 3.4.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy dolphinscheduler || rpm -q dolphinscheduler || dolphinscheduler --version

2. UPGRADE to 3.4.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade dolphinscheduler

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade dolphinscheduler

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-42357?

dolphinscheduler: upgrade to 3.4.2. Exact commands for each OS are on this page.

Is CVE-2026-42357 being exploited?

CVE-2026-42357 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-42357 affect?

CVE-2026-42357 affects dolphinscheduler. Severity is medium (CVSS 6.5). Incorrect Authorization vulnerability allows users to access workflow instance information belonging to projects they do not have permission to access. This issue affects Apache DolphinScheduler versions prior to 3.4.2. Users are recomme

How urgent is CVE-2026-42357?

Priority 34/100. On your watchlist

Related CVEs

CVE-2026-23902 HIGH 8.1 UPGRADE Incorrect Authorization vulnerability in Apache DolphinScheduler allows authenticated users with system login
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CVE-2026-32967 CRITICAL 9.1 UPGRADE Incorrect Authorization vulnerability of `/v2` experimental interface in Apache DolphinScheduler. This issue
CVE-2026-41280 MEDIUM 4.9 UPGRADE Incorrect Authorization vulnerability allows users with system login privileges to delete task definitions in
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References

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