CVE-2026-77179

critical · 9.4

On macOS, the virtio-fs host server used by Docker Sandboxes improperly follows symlinks when reopening an unlinked file from a stored path. A malicious guest can replace a parent directory with a symlink, escape the shared workspace, and read or modify arbitrary host files as the VMM user, potentially achieving host code execution.

9.4

CVSS

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EPSS (exploit prob.)

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EPSS percentile

2026-09-15

Published

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Weaknesses

CWE-59

References

https://docs.docker.com/ai/sandboxes/
https://docs.docker.com/ai/sandboxes/security/isolation/
https://github.com/docker/sbx-releases/releases/tag/v0.42.0

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-77179