Bug 2507709 - CVE-2026-42306 doctl: Moby container framework: Host file overwrite via race condition in docker cp mount setup [fedora-all]
Summary: CVE-2026-42306 doctl: Moby container framework: Host file overwrite via race ...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: doctl
Version: 45
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
Assignee: Mikel Olasagasti Uranga
QA Contact:
URL:
Whiteboard: {"flaws": ["93171e02-3645-4f6c-ad7c-6...
Depends On:
Blocks: CVE-2026-42306
TreeView+ depends on / blocked
 
Reported: 2026-07-27 20:47 UTC by Matteo Signorini
Modified: 2026-09-22 00:18 UTC (History)
2 users (show)

Fixed In Version: doctl-1.169.0-1.fc44 doctl-1.169.0-1.fc45
Clone Of:
Environment:
Last Closed: 2026-09-20 01:18:38 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)

Description Matteo Signorini 2026-07-27 20:47:12 UTC
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

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.

Comment 1 Aoife Moloney 2026-08-17 15:38:20 UTC
This bug appears to have been reported against 'rawhide' during the Fedora Linux 45 development cycle.
Changing version to 45.

Comment 2 Fedora Update System 2026-09-18 22:29:28 UTC
FEDORA-2026-a205d8bdfd (doctl-1.169.0-1.fc45) has been submitted as an update to Fedora 45.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-a205d8bdfd

Comment 3 Fedora Update System 2026-09-18 22:29:29 UTC
FEDORA-2026-ad8394dc92 (doctl-1.169.0-1.fc44) has been submitted as an update to Fedora 44.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-ad8394dc92

Comment 4 Fedora Update System 2026-09-19 01:40:55 UTC
FEDORA-2026-a205d8bdfd has been pushed to the Fedora 45 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-a205d8bdfd`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-a205d8bdfd

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 5 Fedora Update System 2026-09-19 02:19:50 UTC
FEDORA-2026-ad8394dc92 has been pushed to the Fedora 44 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-ad8394dc92`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-ad8394dc92

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 6 Fedora Update System 2026-09-20 01:18:38 UTC
FEDORA-2026-ad8394dc92 (doctl-1.169.0-1.fc44) has been pushed to the Fedora 44 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 7 Fedora Update System 2026-09-22 00:18:51 UTC
FEDORA-2026-a205d8bdfd (doctl-1.169.0-1.fc45) has been pushed to the Fedora 45 stable repository.
If problem still persists, please make note of it in this bug report.


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