CVE-2026-33997Moby: Off-by-one error in plugin privilege validation
Updated under an hour ago ()
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It affects moby and 7 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 6.8 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
- Weakness (CWE)
- CWE-193, CWE-266
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Modified
- Record last updated
- Sep 9, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
moby moby moby:moby (from the name) | before 29.3.1 | CNA record |
Red Hat Multicluster Global Hub 1.4.5 redhat:multicluster_globalhub | from 1779579439 not affected | CISA ADP |
Red Hat Multicluster Engine for Kubernetes redhat:multicluster_engine | All versions | CISA ADP |
Red Hat OpenShift Service Mesh 2 redhat:service_mesh | 2 | CISA ADP |
2 | CISA ADP | |
Red Hat Red Hat OpenShift Container Platform 4 redhat:openshift | 4 | CISA ADP |
Red Hat Red Hat OpenShift Virtualization 4 redhat:container_native_virtualization | 4 | CISA ADP |
docker engine docker:engine | before 29.3.1 | NVD |
References
- https://github.com/moby/moby/security/advisories/GHSA-pxq6-2prw-chj9x-refsource-confirm, vendor-advisory
- https://github.com/moby/moby/releases/tag/docker-v29.3.1x-refsource-misc, release-notes
- https://access.redhat.com/errata/RHSA-2026:21769
- https://access.redhat.com/errata/RHSA-2026:22347
- https://access.redhat.com/errata/RHSA-2026:23345
- https://access.redhat.com/security/cve/CVE-2026-33997
- https://bugzilla.redhat.com/show_bug.cgi?id=2453277
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33997.json
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.