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Critical Docker Sandboxes Flaw Lets Malicious Guest Code Read and Modify macOS Host Files

The Hacker News
macOSCVEAppleVulnerabilityCritical

Overview

A serious vulnerability has been discovered in Docker Sandboxes running on macOS, allowing malicious code to escape its designated project directory. This flaw, tracked as CVE-2026-77179, enables attackers to read and modify files on the host system with the same privileges as the user running the virtual machine. Docker issued a security warning on September 15, highlighting the potential risks for users of affected Docker versions. This vulnerability is particularly concerning because it could lead to unauthorized access to sensitive files, posing a significant threat to data integrity and privacy. Users of Docker on macOS should take immediate action to secure their systems against potential exploitation.

Key Takeaways

  • Affected Systems: Docker Sandboxes on macOS, versions not specified
  • Action Required: Users should update their Docker installations to the latest version as soon as a patch is available.
  • Timeline: Disclosed on September 15, 2023

Original Article Summary

Malicious code running inside a Docker Sandboxes virtual machine on macOS could escape the project directory shared into it and read or change files anywhere else on the host, Docker warns in a security announcement on September 15. The escape runs with the rights of the host account that runs the virtual machine. The flaw, CVE-2026-77179, is rated Critical, affects versions

Impact

Docker Sandboxes on macOS, versions not specified

Exploitation Status

The exploitation status is currently unknown. Monitor vendor advisories and security bulletins for updates.

Timeline

Disclosed on September 15, 2023

Remediation

Users should update their Docker installations to the latest version as soon as a patch is available. Additionally, restricting access to Docker Sandboxes and monitoring for unusual file access patterns could help mitigate risk.

Additional Information

This threat intelligence is aggregated from trusted cybersecurity sources. For the most up-to-date information, technical details, and official vendor guidance, please refer to the original article linked below.

Related Topics: This incident relates to macOS, CVE, Apple, and 2 more.

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