CVE-2026-34040

Moby: AuthZ plugin bypass with oversized request body

State: Published
Severity: 8.8 High
Published: Mar 31, 2026
Updated: Apr 2, 2026
Reserved: Mar 25, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	8.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H	GitHub_M

Weaknesses

CWE-288 Authentication Bypass Using an Alternate Path or Channel

Affected Products

Product	Versions
mobymoby	< 29.3.1Affected

References

https://github.com/moby/moby/security/advisories/GHSA-x744-4wpc-v9h2
https://github.com/moby/moby/releases/tag/docker-v29.3.1

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