VULNERABILITY INTELLIGENCE
CVE-2025-66479
EPSS probability0.16%
CISA KEVNot currently listed
Published2025-12-04
Last modified2026-10-18
Description
Anthropic Sandbox Runtime is a lightweight sandboxing tool for enforcing filesystem and network restrictions on arbitrary processes at the OS level, without requiring a container. Prior to 0.0.16, due to a bug in sandboxing logic, sandbox-runtime did not properly enforce a network sandbox if the sandbox policy did not configure any allowed domains. This could allow sandboxed code to make network requests outside of the sandbox. A patch for this was released in v0.0.16.
Weakness classification
- security-advisories@github.com: CWE-693