# CVE-2026-42306: docker.io: Moby is an open source container framework

CVE-2026-42306 is fixed in 6 products on 1 platform, first by ALAS2023-2026-1783, released June 8, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-42306
- Priority: High
- CVSS: 7.2 (high)
- EPSS: 0.0010
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jun 8, 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 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | docker amzn 2023 | 25.0.16-1.amzn2023.0.1 | [ALAS2023-2026-1783](https://patchblox.com/security/data/fix/linux/alas2023-2026-1783.md) | Jun 8, 2026 |
| Linux | docker-debuginfo amzn 2023 | 25.0.16-1.amzn2023.0.1 | [ALAS2023-2026-1783](https://patchblox.com/security/data/fix/linux/alas2023-2026-1783.md) | Jun 8, 2026 |
| Linux | docker-debugsource amzn 2023 | 25.0.16-1.amzn2023.0.1 | [ALAS2023-2026-1783](https://patchblox.com/security/data/fix/linux/alas2023-2026-1783.md) | Jun 8, 2026 |
| Linux | docker.io Debian 13.5 (trixie) | 26.1.5+dfsg1-9+deb13u1 | [DEBIAN-CVE-2026-42306](https://patchblox.com/security/data/fix/linux/debian-cve-2026-42306.md) | Jun 30, 2026 |
| Linux | docker.io Debian 14 | 28.5.2+dfsg4-3 | [DEBIAN-CVE-2026-42306](https://patchblox.com/security/data/fix/linux/debian-cve-2026-42306.md) | Jun 30, 2026 |
| Linux | flightctl RHEL 10 | 1.1.4-1.el10em | [RHSA-2026:68334](https://patchblox.com/security/data/fix/linux/rhsa-2026-68334.md) | Sep 17, 2026 |
| Linux | govulncheck-vulndb opensuse-leap 16.0 | 0.0.20260727T201416-160000.1.1 | [OPENSUSE-SU-2026:21551-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21551-1.md) | Aug 10, 2026 |
| Linux | govulncheck-vulndb sles 16.0 | 0.0.20260727T201416-160000.1.1 | [SUSE-SU-2026:23227-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23227-1.md) | Aug 10, 2026 |

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Data as of 2026-11-08T19:12:23Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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