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.

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Attack Requirements Present

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Docker Docker Sandboxes unaffected
Version Status Constraints
0.35.0 affected ≤ 0.38.0

No data.

No data.

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Project Subscriptions

Vendors Products
Docker Subscribe
Docker Sandboxes Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://docs.docker.com/ai/sandboxes/ cve-icon cve-icon
https://docs.docker.com/ai/sandboxes/architecture/ cve-icon cve-icon
History

Wed, 12 Aug 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Wed, 12 Aug 2026 15:15:00 +0000

Type Values Removed Values Added
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.
Title Docker Sandboxes read-only runtime mount writable through its shared-export alias
First Time appeared Docker
Docker docker Sandboxes
Weaknesses CWE-863
CPEs cpe:2.3:a:docker:docker_sandboxes:*:*:*:*:*:*:*:*
Vendors & Products Docker
Docker docker Sandboxes
References
Metrics cvssV4_0

{'score': 5.7, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Docker

Published:

Updated: 2026-08-12T17:02:13.455Z

Reserved: 2026-07-28T21:28:23.642Z

Link: CVE-2026-18171

cve-icon Vulnrichment

Updated: 2026-08-12T17:02:04.406Z

cve-icon NVD

Status : Received

Published: 2026-08-12T15:17:32.477

Modified: 2026-08-12T18:17:27.893

Link: CVE-2026-18171

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses