CVE-2026-33997
Prior to version 29.3.1, a security vulnerability has been detected that allows plugins privilege validation to be bypassed during docker plugin install.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.39%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 8.1 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
- EPSS
- 0.39% probability · 32th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-193, CWE-266
- Affected
- docker/engine
- Source
- security-advisories@github.com
References
- https://github.com/moby/moby/releases/tag/docker-v29.3.1Release Notes
- https://github.com/moby/moby/security/advisories/GHSA-pxq6-2prw-chj9Vendor Advisory
- 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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.