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.

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-pxq6-2prw-chj9 Moby has an Off-by-one error in its plugin privilege validation
Fixes

Solution

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Workaround

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History

Tue, 31 Mar 2026 03:00:00 +0000

Type Values Removed Values Added
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.
Title Moby: Off-by-one error in plugin privilege validation
Weaknesses CWE-193
References
Metrics cvssV3_1

{'score': 6.8, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-03-31T18:53:19.389Z

Reserved: 2026-03-24T22:20:06.214Z

Link: CVE-2026-33997

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-03-31T03:15:57.523

Modified: 2026-03-31T03:15:57.523

Link: CVE-2026-33997

cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses