Answer in brief
CVE-2026-77179 records a Critical severity (CVSS 9.4) vulnerability in Docker Sandboxes guest can write arbitrary macOS host files via a symlink in the virtio-fs stored-path fallback. The current sources do not mark it as known exploited. The current feed maps Docker/Docker Sandboxes (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 9.4. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Docker/Docker Sandboxes (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Docker/Docker Sandboxesgeneric | >=0.28.0 <0.42.0 | 0.42.0 |
Published upstream
Sep 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 16, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 15, 2026
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.
Quoted source text, attributed separately from HOL analysis.