# CVE-2026-27597: @enclave-vm/core is vulnerable to Sandbox Escape

> Attackers can escape the JavaScript sandbox to achieve remote code execution, affecting users of the Enclave library.

- **Severity:** Critical 10.0 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 25 Feb 2026
- **Updated:** 25 Feb 2026
- **Also known as:** GHSA-f229-3862-4942

## What is CVE-2026-27597?

CVE-2026-27597 is a critical code injection vulnerability in agentfront enclave, published on 25 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Enclave is a secure JavaScript sandbox designed for safe AI agent code execution. Prior to version 2.11.1, it is possible to escape the security boundraries set by `@enclave-vm/core`, which can be used to achieve remote code execution (RCE). The issue has been fixed in version 2.11.1.

Weakness: CWE-94 (Improper Control of Generation of Code)

## Which versions are affected by CVE-2026-27597?

2 open source packages ship an affected version, including @enclave-vm/core. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `@enclave-vm/core` | npm | All versions | 2.11.1 |
| `@enclave-vm/core` | npm | All versions | 2.11.1 |

Products: Agentfront Enclave.

## How do I fix CVE-2026-27597?

Upgrade @enclave-vm/core to 2.11.1 or later.

## Is CVE-2026-27597 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-27597 exists.

Public exploit code:

- https://github.com/NetVanguard-cmd/CVE-2026-27597 (github_poc): https://github.com/NetVanguard-cmd/CVE-2026-27597

## Other vulnerabilities in agentfront enclave

- [CVE-2026-22686](https://insights.sbomify.com/CVE-2026-22686/): Sandbox Escape via Host Error Prototype Chain in enclave-vm (critical 10.0)
- [CVE-2026-25533](https://insights.sbomify.com/CVE-2026-25533/): Enclave has a sandbox escape via infinite recursion and error objects (medium 6.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-27597 and fix it if it is affected.

What it is: CVE-2026-27597 is a critical code injection vulnerability in agentfront enclave, published on 25 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-27597 exists.

Affected packages and fixed versions:
- @enclave-vm/core (npm): affected all versions; fixed in 2.11.1
- @enclave-vm/core (npm): affected all versions; fixed in 2.11.1

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-27597/ (Markdown: https://insights.sbomify.com/CVE-2026-27597/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-27597
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-27597
- OSV: https://osv.dev/vulnerability/CVE-2026-27597

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-27597/
Summaries are generated and may contain mistakes; the official description above is the record.