CVE-2026-41567: Docker: `PUT /containers/{id}/archive` executes container binary on the host
Description
Moby is an open source container framework. In versions prior to 29.5.1 and in moby/moby v2 prior to v2.0.0-beta.14, when a compressed archive is uploaded to a container via `PUT /containers/{id}/archive` or piped through `docker cp -`, the daemon resolves decompression binaries (such as `xz` or `unpigz`) from the container's filesystem rather than the host's due to incorrect ordering of operations. A malicious container image containing a trojanized decompression binary can achieve arbitrary code execution with full daemon privileges, including host root UID and unrestricted capabilities, when a user uploads a compressed (xz or gzip) archive into that container. This issue is fixed in Docker Engine 29.5.1 and moby/moby v2.0.0-beta.14. Workarounds include only running containers from trusted images, using authorization plugins to restrict access to the `PUT /containers/{id}/archive` endpoint, and avoiding piping compressed archives into containers created from untrusted images
Vector CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N · CWE-427
Tracked companies
Mapped from the CVE’s affected-product data, NVD CPE matches, vendor advisories or package feeds. A mapping means the vendor’s software is named, not that its hosted service was exposed.
Status incidents that name it
No tracked status incident names this CVE.
Affected vendors and products
docker: docker/daemonmoby: Docker Enginemoby: moby/v2/daemonRed Hat: Exploit IntelligenceRed Hat: Multicluster Engine for KubernetesRed Hat: Red Hat Advanced Cluster Management for Kubernetes 2Red Hat: Red Hat Ceph Storage 5Red Hat: Red Hat Ceph Storage 7Red Hat: Red Hat Ceph Storage 8Red Hat: Red Hat Ceph Storage 9Red Hat: Red Hat Hardened ImagesRed Hat: Red Hat OpenShift AI (RHOAI)Red Hat: Red Hat OpenShift Container Platform 4
References
- CVE record on cve.org (opens in new tab)
- NVD entry (opens in new tab)
- github.com/moby/moby/security/advisories/GHSA-x86f-5xw2-fm2r (opens in new tab)
- CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
- This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
- Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
- EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)