CVE-2026-18171
MEDIUM
MEDIUM
Priority: 0.01
BB Relevance:
36/100
Published: 2026-08-12
Modified: 2026-10-23
First seen: 2026-10-29
Status: active
Attack Surface
Low Complexity
No Interaction
Integ. Impact
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
None
S:
X
AT:
Present
VC:
None
VI:
High
VA:
None
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.