[Bug]: Vulnerability found in moby (CVE-2026-34040)

[csherida]

Testcontainers version

v0.41.0

Using the latest Testcontainers version?

Yes

Host OS

Linux

Host arch

x86

Go version

1.26

Docker version

Client:
 Version:           27.4.0
 API version:       1.47
 Go version:        go1.22.10
 Git commit:        bde2b89
 Built:             Sat Dec  7 10:35:43 2024
 OS/Arch:           darwin/arm64
 Context:           desktop-linux

Server: Docker Desktop 4.37.2 (179585)
 Engine:
  Version:          27.4.0
  API version:      1.47 (minimum version 1.24)
  Go version:       go1.22.10
  Git commit:       92a8393
  Built:            Sat Dec  7 10:38:33 2024
  OS/Arch:          linux/arm64
  Experimental:     false
 containerd:
  Version:          1.7.21
  GitCommit:        472731909fa34bd7bc9c087e4c27943f9835f111
 runc:
  Version:          1.1.13
  GitCommit:        v1.1.13-0-g58aa920
 docker-init:
  Version:          0.19.0
  GitCommit:        de40ad0

Docker info

Client:
 Version:    27.4.0
 Context:    desktop-linux
 Debug Mode: false
 Plugins:
  ai: Ask Gordon - Docker Agent (Docker Inc.)
    Version:  v0.5.1
    Path:     /Users/chriss/.docker/cli-plugins/docker-ai
  buildx: Docker Buildx (Docker Inc.)
    Version:  v0.19.2-desktop.1
    Path:     /Users/chriss/.docker/cli-plugins/docker-buildx
  compose: Docker Compose (Docker Inc.)
    Version:  v2.31.0-desktop.2
    Path:     /Users/chriss/.docker/cli-plugins/docker-compose
  debug: Get a shell into any image or container (Docker Inc.)
    Version:  0.0.37
    Path:     /Users/chriss/.docker/cli-plugins/docker-debug
  desktop: Docker Desktop commands (Beta) (Docker Inc.)
    Version:  v0.1.0
    Path:     /Users/chriss/.docker/cli-plugins/docker-desktop
  dev: Docker Dev Environments (Docker Inc.)
    Version:  v0.1.2
    Path:     /Users/chriss/.docker/cli-plugins/docker-dev
  extension: Manages Docker extensions (Docker Inc.)
    Version:  v0.2.27
    Path:     /Users/chriss/.docker/cli-plugins/docker-extension
  feedback: Provide feedback, right in your terminal! (Docker Inc.)
    Version:  v1.0.5
    Path:     /Users/chriss/.docker/cli-plugins/docker-feedback
  init: Creates Docker-related starter files for your project (Docker Inc.)
    Version:  v1.4.0
    Path:     /Users/chriss/.docker/cli-plugins/docker-init
  sbom: View the packaged-based Software Bill Of Materials (SBOM) for an image (Anchore Inc.)
    Version:  0.6.0
    Path:     /Users/chriss/.docker/cli-plugins/docker-sbom
  scout: Docker Scout (Docker Inc.)
    Version:  v1.15.1
    Path:     /Users/chriss/.docker/cli-plugins/docker-scout

Server:
 Containers: 2
  Running: 1
  Paused: 0
  Stopped: 1
 Images: 43
 Server Version: 27.4.0
 Storage Driver: overlayfs
  driver-type: io.containerd.snapshotter.v1
 Logging Driver: json-file
 Cgroup Driver: cgroupfs
 Cgroup Version: 2
 Plugins:
  Volume: local
  Network: bridge host ipvlan macvlan null overlay
  Log: awslogs fluentd gcplogs gelf journald json-file local splunk syslog
 CDI spec directories:
  /etc/cdi
  /var/run/cdi
 Swarm: inactive
 Runtimes: io.containerd.runc.v2 runc
 Default Runtime: runc
 Init Binary: docker-init
 containerd version: 472731909fa34bd7bc9c087e4c27943f9835f111
 runc version: v1.1.13-0-g58aa920
 init version: de40ad0
 Security Options:
  seccomp
   Profile: unconfined
  cgroupns
 Kernel Version: 6.10.14-linuxkit
 Operating System: Docker Desktop
 OSType: linux
 Architecture: aarch64
 CPUs: 12
 Total Memory: 7.653GiB
 Name: docker-desktop
 ID: 36308149-a91c-4cde-a3fc-956821a57a22
 Docker Root Dir: /var/lib/docker
 Debug Mode: false
 HTTP Proxy: http.docker.internal:3128
 HTTPS Proxy: http.docker.internal:3128
 No Proxy: hubproxy.docker.internal
 Labels:
  com.docker.desktop.address=unix:///Users/chriss/Library/Containers/com.docker.docker/Data/docker-cli.sock
 Experimental: false
 Insecure Registries:
  hubproxy.docker.internal:5555
  127.0.0.0/8
 Live Restore Enabled: false

What happened?

Vulnerability scanning has picked up a vulnerability in github.com/docker/docker v28.5.2+incompatible. The recommended path is to upgrade to moby/docker v29.3.1. Is it possible to upgrade the library to the latest version?

Relevant log output

Additional information

No response

[cl-kanno]

More info about the vulnerability here:
GHSA-x744-4wpc-v9h2

And, related one(CVE-2026-33997):
GHSA-pxq6-2prw-chj9

[erikburt]

I believe #3591 will fix this.

[cl-kanno]

I believe #3591 will fix this.

Not yet, but better than now 👍

2 modules remain.

> trivy repository --branch migrate_moby https://github.com/thaJeztah/testcontainers-go

...

modules/chroma/go.mod (gomod)

Total: 2 (UNKNOWN: 0, LOW: 0, MEDIUM: 1, HIGH: 1, CRITICAL: 0)

┌──────────────────────────┬────────────────┬──────────┬────────┬──────────────────────┬───────────────┬──────────────────────────────────────────────────────────────┐
│         Library          │ Vulnerability  │ Severity │ Status │  Installed Version   │ Fixed Version │                            Title                             │
├──────────────────────────┼────────────────┼──────────┼────────┼──────────────────────┼───────────────┼──────────────────────────────────────────────────────────────┤
│ github.com/docker/docker │ CVE-2026-34040 │ HIGH     │ fixed  │ v28.5.2+incompatible │ 29.3.1        │ Moby has AuthZ plugin bypass when provided oversized request │
│                          │                │          │        │                      │               │ bodies                                                       │
│                          │                │          │        │                      │               │ https://avd.aquasec.com/nvd/cve-2026-34040                   │
│                          ├────────────────┼──────────┤        │                      │               ├──────────────────────────────────────────────────────────────┤
│                          │ CVE-2026-33997 │ MEDIUM   │        │                      │               │ moby: docker: github.com/moby/moby: Moby: Privilege          │
│                          │                │          │        │                      │               │ validation bypass during plugin installation                 │
│                          │                │          │        │                      │               │ https://avd.aquasec.com/nvd/cve-2026-33997                   │
└──────────────────────────┴────────────────┴──────────┴────────┴──────────────────────┴───────────────┴──────────────────────────────────────────────────────────────┘

modules/compose/go.mod (gomod)

Total: 2 (UNKNOWN: 0, LOW: 0, MEDIUM: 1, HIGH: 1, CRITICAL: 0)

┌──────────────────────────┬────────────────┬──────────┬────────┬──────────────────────┬───────────────┬──────────────────────────────────────────────────────────────┐
│         Library          │ Vulnerability  │ Severity │ Status │  Installed Version   │ Fixed Version │                            Title                             │
├──────────────────────────┼────────────────┼──────────┼────────┼──────────────────────┼───────────────┼──────────────────────────────────────────────────────────────┤
│ github.com/docker/docker │ CVE-2026-34040 │ HIGH     │ fixed  │ v28.5.2+incompatible │ 29.3.1        │ Moby has AuthZ plugin bypass when provided oversized request │
│                          │                │          │        │                      │               │ bodies                                                       │
│                          │                │          │        │                      │               │ https://avd.aquasec.com/nvd/cve-2026-34040                   │
│                          ├────────────────┼──────────┤        │                      │               ├──────────────────────────────────────────────────────────────┤
│                          │ CVE-2026-33997 │ MEDIUM   │        │                      │               │ moby: docker: github.com/moby/moby: Moby: Privilege          │
│                          │                │          │        │                      │               │ validation bypass during plugin installation                 │
│                          │                │          │        │                      │               │ https://avd.aquasec.com/nvd/cve-2026-33997                   │
└──────────────────────────┴────────────────┴──────────┴────────┴──────────────────────┴───────────────┴──────────────────────────────────────────────────────────────┘

[Gitznik]

This was fixed via release 0.42.0, right?

[enrichman]

This was fixed via release 0.42.0, right?

Yes, I just run a trivy scan on our repo after updating to the 0.42.0 where I've seen the github.com/docker/docker dependency removed.

[cl-kanno]

This was fixed via release 0.42.0, right?

Yeah, your projects using 0.42.0 are safe now, I think.
But, some modules in this repository still affected.

• modules/compose/go.mod
• modules/chroma/go.mod

You can confirm by

trivy repository --tag v0.42.0 https://github.com/testcontainers/testcontainers-go # for v0.42.0

or

trivy repository https://github.com/testcontainers/testcontainers-go # for main branch

Users are now safe I think, but not fixed completly.