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5.7 Medium

CVE-2026-18171 Docker Sandboxes (sbx) applies the read-only intent of a runtime host mount to the in-guest container bind only: the…

Description

Docker Sandboxes (sbx) applies the read-only intent of a runtime host mount to the in-guest container bind only: the underlying virtio-fs host-edge grant is added to the sandbox's policy-share allowlist with no access mode. The directory stays writable at its shared-export path, so unprivileged code inside the sandbox can derive that path and write to a host directory the operator attached read-only.

Affected products and versions

Product Affected versions Fixed in
Docker Sandboxes 0.35 0.35.0 → 0.38.0 No fix stated

References

Timeline

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