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This article addresses critical security flaws in Docker Sandboxes that compromise the isolation guarantees essential for running untrusted AI agent workloads and microVMs. By enabling guest escape through filesystem path manipulation and socket relay vulnerabilities, these issues directly threaten the integrity of host systems hosting sensitive AI infrastructure. The release of version 0.42.0 resolves these risks, reinforcing the security posture required for deploying autonomous AI tasks in shared environments.
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Critical Docker Sandbox Vulnerabilities Enable Malicious Guests to Escape Isolated microVM Workspaces

Cybersecurity News3 min read

Docker patched two serious vulnerabilities in Docker Sandboxes that could let a malicious guest workload break out of its intended shared workspace and access sensitive host-side resources. The flaws, tracked as CVE-2026-77179 and CVE-2026-79994, were fixed in Docker Sandboxes version 0.42.0, released on September 7. Docker Sandboxes uses isolated microVM environments to run potentially untrusted […] The post Critical Docker Sandbox Vulnerabilities Enable Malicious Guests to Escape Isolated microVM Workspaces appeared first on Cyber Security News.

Docker patched two serious vulnerabilities in Docker Sandboxes that could let a malicious guest workload break out of its intended shared workspace and access sensitive host-side resources. The flaws, tracked as CVE-2026-77179 and CVE-2026-79994, were fixed in Docker Sandboxes version 0.42.0, released on September 7. Docker Sandboxes…

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