Vulnerability DatabaseCVE-2026-34040
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CVE-2026-34040
Published:March 31, 2026
Updated:April 23, 2026
Moby is an open source container framework. Prior to version 29.3.1, a security vulnerability has been detected that allows attackers to bypass authorization plugins (AuthZ). This issue has been patched in version 29.3.1.
Affected Packages
https://github.com/moby/moby.git (GITHUB):
Affected version(s) >=docker-v29.0.0-rc.1 <docker-v29.3.1
Fix Suggestion:
Update to version docker-v29.3.1
github.com/moby/moby/v2 (GO):
Affected version(s) >=v2.0.0-beta.0 <v2.0.0-beta.8
Fix Suggestion:
Update to version v2.0.0-beta.8
Related Resources (7)
https://github.com/moby/moby/security/advisories/GHSA-v23v-6jw2-98fq
https://docs.docker.com/engine/extend/plugins_authorization
https://github.com/moby/moby/security/advisories/GHSA-x744-4wpc-v9h2
https://github.com/moby/moby/commit/e89edb19ad7de0407a5d31e3111cb01aa10b5a38
https://github.com/moby/moby/releases/tag/docker-v29.3.1
https://github.com/moby/moby
https://nvd.nist.gov/vuln/detail/CVE-2026-34040
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CVSS v4
Base Score:
9.3
Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
HIGH
Subsequent System Availability
HIGH
CVSS v3
Base Score:
8.8
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Incorrect Authorization
CWE-863
Authentication Bypass Using an Alternate Path or Channel
CWE-288
EPSS
Base Score:
0.01