Docker: `PUT /containers/{id}/archive` executes container binary on the host — CVE-2026-41567

Summary

## Summary When a user uploads a compressed archive into a container, a malicious image can execute arbitrary code with daemon (host root) privileges. ## Details When handling `PUT /containers/{id}/archive` requests with compressed archives, the daemon decompresses them using external system binaries. Due to incorrect ordering of operations, these binaries are resolved from the container's filesystem rather than…

Product

go: github.com/moby/moby/v2 | go: github.com/docker/docker | go: github.com/moby/moby

What to do

General, cautious steps (verify details in the official source):

• Prioritize patching or mitigation immediately (treat as actively risky).
• Identify affected product versions in your inventory and verify whether you are impacted.
• Apply vendor patches/updates or recommended mitigations as soon as available.
• Read the official advisory for exact affected versions and remediation steps.

Official advisory

• Read the official source
• CVE Record
• NVD

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