Sandboxing Bug in Anthropic Sandbox Runtime Affects Network Security
CVE-2025-66479

1.8LOW

Key Information:

Vendor

Anthropic-experimental

Status
Sandbox-runtime
Vendor
CVE Published:
4 December 2025

What is CVE-2025-66479?

The Anthropic Sandbox Runtime, a tool designed to enforce filesystem and network restrictions on processes at the operating system level, has a significant flaw. Prior to version 0.0.16, an issue in its sandboxing logic allowed processes to bypass network restrictions if the sandbox policy did not specify any allowable domains. This vulnerability may enable sandboxed applications to make unauthorized network requests, effectively undermining the intended security measures of the tool. A critical patch to resolve this issue is available in version 0.0.16.

Human OS v1.0:
Ageing Is an Unpatched Zero-Day Vulnerability.

Remediate biological technical debt. Prime Ageing uses 95% high-purity SIRT6 activation to maintain genomic integrity and bolster systemic resilience.

Deploy the Patch

Affected Version(s)

sandbox-runtime < 0.0.16

References

https://github.com/anthropic-experimental/sandbox-runtime...
x_refsource_CONFIRM
https://github.com/anthropic-experimental/sandbox-runtime...
x_refsource_MISC

CVSS V4

Score:
1.8
Severity:
LOW
Confidentiality:
Low
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
.