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CVE PROGRAM SOURCE RECORD7.2 High

CVE-2026-42306

Moby: Race condition in docker cp allows bind mount redirection to host path

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Status
Published
Published
Updated
Assigning organization
GitHub_M

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 redirect a bind mount target to an arbitrary host path, potentially overwriting host files or causing denial of service. This issue has been patched in Docker Engine version 29.5.1 and Moby Daemon version 2.0.0-beta.14.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

moby moby

  • 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