# CVE-2026-33997: Moby: Off-by-one error in plugin privilege validation

> CVE-2026-33997: Moby: Off-by-one error in plugin privilege validation. CVSS 6.8 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-33997
Last updated: 2026-09-09T13:19:32Z

- Published: 2026-03-31 01:36 UTC · Updated: 2026-09-09 13:19 UTC · Assigner: GitHub\_M
- CVSS: 6.8 (CVSS 3.1) · Severity: Medium · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
- EPSS: 0.39%, 32th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-193

## 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.

## Affected vendors and products

- moby: moby
- Red Hat: Multicluster Engine for Kubernetes
- Red Hat: Multicluster Global Hub 1.4.5
- Red Hat: Multicluster Global Hub 1.6.5
- Red Hat: OpenShift Service Mesh 2
- Red Hat: Red Hat Advanced Cluster Management for Kubernetes 2
- Red Hat: Red Hat multicluster global hub 1.5.3
- Red Hat: Red Hat OpenShift Container Platform 4
- Red Hat: Red Hat OpenShift Virtualization 4

## Tracked companies

- [Docker](https://rewindex.com/company/docker.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-33997)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-33997)
- [https://github.com/moby/moby/releases/tag/docker-v29.3.1](https://github.com/moby/moby/releases/tag/docker-v29.3.1)
- [https://github.com/moby/moby/security/advisories/GHSA-pxq6-2prw-chj9](https://github.com/moby/moby/security/advisories/GHSA-pxq6-2prw-chj9)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-33997 · Markdown: https://rewindex.com/cve/CVE-2026-33997.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-33997 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:09:47.968Z