CVE-2026-41568

Moby: Race condition in docker cp allows creation of arbitrary empty files on the host via symlink swap

State: Published
Severity: 6.1 Medium
Published: Jun 12, 2026
Updated: Jun 12, 2026
Reserved: Apr 21, 2026

Description

Moby is an open source container framework. In Docker Engine prior to version 29.5.1, Docker Daemon versions 28.5.2 and prior, and Moby Daemon prior to version 2.0.0-beta.14, a race condition during docker cp mount setup allows a malicious container to create empty files or directories at arbitrary absolute paths on the host filesystem. This issue has been patched in Docker Engine version 29.5.1 and Moby Daemon version 2.0.0-beta.14.

Scores

CVSS	Score	Vector	Source
3.1	6.1 Medium	CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:N/I:L/A:H	GitHub_M

Weaknesses

CWE-81 Improper Neutralization of Script in an Error Message Web Page
CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition

Affected Products

Product	Versions
mobymoby	github.com/docker/docker/daemon <= 28.5.2Affected Docker Engine < 29.5.1Affected github.com/moby/moby/v2/daemon < 2.0.0-beta.14Affected

References

https://github.com/moby/moby/security/advisories/GHSA-vp62-88p7-qqf5

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