CVE-2026-77179
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.
Scoring
- Severity
- CRITICAL
- CVSS base score
- 9.4
- CVSS vector
- 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
- EPSS probability
- 0.16%
- CWE
- CWE-59
- Published
- 2026-09-15
- Last modified
- 2026-09-15
Affected products
- Docker Docker Sandboxes
Weakness type
Related vulnerabilities
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- CVE-2026-53476 — Assisted-migration-agent: vddk tarball chained-symlink arbitrary file write