How severe is CVE-2026-33997?

CVE-2026-33997 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2026-33997 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-33997?

CVE-2026-33997 affects Docker Engine. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-33997?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-33997 have an EU (EUVD) identifier?

Yes. CVE-2026-33997 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17290.

When was CVE-2026-33997 published?

CVE-2026-33997 was published on 2026-03-31 and last updated on 2026-06-30.

CVE-2026-33997

CVE-2026-33997 is a medium-severity vulnerability in Docker Engine with a CVSS 3.x base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-193.

Key facts

Severity: Medium (CVSS 3.x base score 6.8)
EPSS exploit prediction: 0% (31st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-17290
Weakness: CWE-193
Affected product: Docker Engine
Published: 2026-03-31
Last modified: 2026-06-30

Description

Moby is an open source container framework. Prior to version 29.3.1, a security vulnerability has been detected that allows plugins privilege validation to be bypassed during docker plugin install. Due to an error in the daemon's privilege comparison logic, the daemon may incorrectly accept a privilege set that differs from the one approved by the user. Plugins that request exactly one privilege are also affected, because no comparison is performed at all. This issue has been patched in version 29.3.1.

Frequently asked questions

What is CVE-2026-33997?: Moby is an open source container framework. Prior to version 29.3.1, a security vulnerability has been detected that allows plugins privilege validation to be bypassed during docker plugin install. Due to an error in the daemon's privilege comparison logic, the daemon may incorrectly accept a privilege set that differs from the one approved by the user. Plugins that request exactly one privilege are also affected, because no comparison is performed at all. This issue has been patched in version 29.3.1.
How severe is CVE-2026-33997?: CVE-2026-33997 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2026-33997 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-33997?: CVE-2026-33997 affects Docker Engine. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-33997?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-33997 have an EU (EUVD) identifier?: Yes. CVE-2026-33997 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17290.
When was CVE-2026-33997 published?: CVE-2026-33997 was published on 2026-03-31 and last updated on 2026-06-30.

References

Affected products (1)

cpe:2.3:a:docker:engine:*:*:*:*:*:*:*:*

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