---
title: "CVE-2026-27597: @enclave-vm/core is vulnerable to Sandbox Escape"
url: https://erroneo.us/security/cve/CVE-2026-27597/
description: "CVE-2026-27597 (@enclave-vm/core (npm)): Enclave is a secure JavaScript sandbox designed for safe AI agent code execution. Prior to version 2.11.1, it is…"
type: vulnerability-record
section: "Security Digest"
date_published: 2026-02-25
date_modified: 2026-07-06
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2026-27597"
kev: false
cvss: 10
epss: 0.01024
license: All rights reserved. Quote with attribution and a link.
---

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

**Signal:** Critical and remotely reachable. No known exploitation yet, but it is network-reachable without credentials. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- Not in CISA KEV , but CISA’s SSVC assessment records a public proof-of-concept, so attack code exists.
- EPSS 1.0% , percentile 63: FIRST’s model estimates a 1.0% chance of exploitation activity in the next 30 days, higher than 63% of all scored CVEs (moderate). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes @enclave-vm/core (npm) <= 2.10.1, fixed in 2.11.1 . Check your lockfile, including transitive dependencies.

## What it is

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.

## Affected packages

- npm `@enclave-vm/core` <= 2.10.1 → fixed: 2.11.1

## Affected products (CVE record)

- agentfront enclave: < 2.11.1

## Severity

- GitHub_M CVSS 3.1: 10 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H`
- GitHub CVSS 3.1: 10.0 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation poc , automatable yes , technical impact total .
- FIRST EPSS (model of 2026-10-21): 1.02% probability of exploitation activity in the next 30 days; percentile 63.

## Sources

- [GitHub Advisory GHSA-f229-3862-4942](https://github.com/advisories/GHSA-f229-3862-4942)
- [CVE.org record CVE-2026-27597](https://www.cve.org/CVERecord?id=CVE-2026-27597)
- [NVD entry CVE-2026-27597](https://nvd.nist.gov/vuln/detail/CVE-2026-27597)
- [github.com](https://github.com/agentfront/enclave/security/advisories/GHSA-f229-3862-4942)
- [github.com](https://github.com/agentfront/enclave/commit/09afbebe4cb6d0586c1145aa71ffabd2103932db)

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Source page: https://erroneo.us/security/cve/CVE-2026-27597/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt