Affected: Alpaquita:23: docker, Alpaquita:25: docker, Alpaquita:stream: docker

Withdrawn by the publisher.

Affected: CleanStart: rancher-agent

Package rancher-agent version 2.11.15-r1 fixes 28 vulnerabilities: CVE-2026-53492, CVE-2026-50195, CVE-2026-53489, CVE-2024-40635, CVE-2024-25621...

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: Go: github.com/docker/docker, Go: github.com/moby/moby/v2, Go: github.com/moby/moby

## Summary

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.

## Details

When copying files into a container, the daemon sets up a temporary filesystem view by bind-mounting volumes into a private mount namespace. During this setup, the mount destination is created inside the container root and then a bind mount is attached using the container-relative path resolved to an absolute host path.

Between mountpoint creation and the `mount()` syscall, a process running inside the container can replace the destination (or a parent path component) with a symlink pointing to an arbitrary location on the host. The `mount()` syscall follows the symlink, causing the volume to be bind-mounted onto an arbitrary host path instead of the intended container path.

## Impact

A malicious container can redirect a volume bind mount to an arbitrary host path. The impact depends on the volume content and mount options:

- If the volume is writable, arbitrary host files at the redirected path could be overwritten with the volume's contents. - If the volume is read-only, the host path is masked by the mount for the duration of the operation, causing denial of service. - In all cases the mount is temporary (torn down after the `docker cp` completes), but the effects of any writes persist.

### Conditions for exploitation

- A container must have at…

Affected: openEuler:20.03-LTS-SP4: docker

Security Fix(es):

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.(CVE-2026-41568)

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.(CVE-2026-42306)

github.com/containerd/containerd: containerd local privilege escalation golang: net/url: Memory exhaustion in query parameter parsing in net/url golang: archive/zip: Excessive CPU consumption when building archive index in archive/zip crypto/x509: golang: Denial of Service due to excessive resource consumption via crafted certificate github.com/sigstore/fulcio: Fulcio: Denial of Service via crafted OpenID Connect (OIDC) token crypto/tls: crypto/tls: Incorrect certificate validation during TLS session resumption golang.org/x/net/html: golang.org/x/net/html: Arbitrary code execution via Cross-Site Scripting golang.org/x/net/html: golang: golang.org/x/net/html: Cross-Site Scripting via HTML parsing bypass crypto/x509: crypto/tls: golang: Go: Denial of Service vulnerability in certificate chain building crypto/x509: golang: Go crypto/x509: Denial of Service via inefficient certificate chain validation golang: internal/syscall/unix: Root.Chmod can follow symlinks out of the root google.golang.org/grpc/grpc-go: google.golang.org/grpc/authz: gRPC-Go: Authorization bypass due to improper HTTP/2 path validation BuildKit: github.com/moby/buildkit: BuildKit: Arbitrary file write and code execution via untrusted frontend github.com/moby/buildkit: BuildKit: Unauthorized file access via Git URL fragment subdir components crypto/x509: golang: Go crypto/x509: Certificate validation bypass due to incorrect DNS constraint application net: golang: Go net package: Denial of Service via long CNA…

Affected: Ubuntu:Pro:16.04:LTS: docker.io, Ubuntu:Pro:18.04:LTS: docker.io, Ubuntu:Pro:20.04:LTS: docker.io, Ubuntu:Pro:20.04:LTS: docker.io-app, Ubuntu:Pro:22.04:LTS: docker.io, Ubuntu:Pro:22.04:LTS: docker.io-app, Ubuntu:Pro:24.04:LTS: docker.io, Ubuntu:Pro:24.04:LTS: docker.io-app, Ubuntu:25.10: docker.io, Ubuntu:25.10: docker.io-app and 2 more

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.

Ein lokaler Angreifer kann mehrere Schwachstellen in docker ausnutzen, um beliebigen Programmcode mit Administratorrechten auszuführen, einen Denial-of-Service-Zustand zu verursachen oder Daten zu manipulieren.