CVE-2026-22686
Sandbox Escape in enclave-vm Allows Arbitrary Host Code Execution
Description
Description
Enclave is a secure JavaScript sandbox designed for safe AI agent code execution. Prior to 2.7.0, there is a critical sandbox escape vulnerability in enclave-vm that allows untrusted, sandboxed JavaScript code to execute arbitrary code in the host Node.js runtime. When a tool invocation fails, enclave-vm exposes a host-side Error object to sandboxed code. This Error object retains its host realm prototype chain, which can be traversed to reach the host Function constructor. An attacker can intentionally trigger a host error, then climb the prototype chain. Using the host Function constructor, arbitrary JavaScript can be compiled and executed in the host context, fully bypassing the sandbox and granting access to sensitive resources such as process.env, filesystem, and network. This breaks enclave-vm’s core security guarantee of isolating untrusted code. This vulnerability is fixed in 2.7.0.
CVSS Scores
EPSS Scores
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Affected Vendors & Products
| Vendor | Product | Version |
|---|---|---|
| agentfront | enclave-vm | 2.7.0 |
| agentfront | enclave-vm | 2.6.0 |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-94 | The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. |
| CWE-693 | The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product. |
Attack-Flow Graph
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0/70
EPSS Chart
Meta Information
CVE Publication Date:
2026-01-14
CVE Last Modified Date:
2026-01-14
Report Generation Date:
2026-01-21
AI Powered Q&A Generation:
2026-01-14
EPSS Last Evaluated Date:
2026-01-20
NVD Report Link: