CVE-2026-32966: DataSource API Missing Authorization Check Leads to Arbitrary Data Source Metadata Disclosure in Apache Dolphi

Q: How do I fix CVE-2026-32966?

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

Q: Is CVE-2026-32966 being exploited?

CVE-2026-32966 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-2026-32966 affect?

CVE-2026-32966 affects dolphinscheduler. Severity is critical (CVSS 9.8). DataSource API Missing Authorization Check Leads to Arbitrary Data Source Metadata Disclosure in Apache DolphinScheduler. This issue affects Apache DolphinScheduler: before 3.4.2. Users are recommended to upgrade to version 3.4.2, which f

Q: How urgent is CVE-2026-32966?

Priority 53/100. Critical severity; Remotely exploitable, no login, no user action; On your watchlist

This month

CRITICAL 9.8REMOTEWATCHLISTUPGRADE

CVE-2026-32966 is a critical-severity flaw (CVSS 9.8) affecting dolphinscheduler. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

DataSource API Missing Authorization Check Leads to Arbitrary Data Source Metadata Disclosure in Apache DolphinScheduler. This issue affects Apache DolphinScheduler: before 3.4.2. Users are recommended to upgrade to version 3.4.2, which fixes the issue.

Why this priority

Critical severity
Remotely exploitable, no login, no user action
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 67%)
CISA exploited list	No
Weakness	CWE-863
Published	2026-06-17
Last modified	2026-10-25

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

Last updated 2026-10-25 · 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
2026-10-25 23:10 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-2026-32966?

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

Is CVE-2026-32966 being exploited?

CVE-2026-32966 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-2026-32966 affect?

CVE-2026-32966 affects dolphinscheduler. Severity is critical (CVSS 9.8). DataSource API Missing Authorization Check Leads to Arbitrary Data Source Metadata Disclosure in Apache DolphinScheduler. This issue affects Apache DolphinScheduler: before 3.4.2. Users are recommended to upgrade to version 3.4.2, which f

How urgent is CVE-2026-32966?

Priority 53/100. Critical severity; Remotely exploitable, no login, no user action; On your watchlist

References

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