Security Digest · Vulnerability record
CVE-2026-27597: @enclave-vm/core is vulnerable to Sandbox Escape
Enclave is a secure JavaScript sandbox designed for safe AI agent code execution.
CVSS 10.0 Critical EPSS 1.0% · p63
Should you act?
Critical and remotely reachable
No known exploitation yet, but it is network-reachable without credentials. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.
- 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.
From the GitHub advisory
Summary
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.
---
Details
Weakness type: CWE-94.
Product: @enclave-vm/core (npm) · Assigned by: GitHub_M · Published: 2026-02-25
Affected and fixed versions
| Ecosystem | Package | Vulnerable | First fixed |
|---|---|---|---|
| npm | @enclave-vm/core | <= 2.10.1 | 2.11.1 |
| Vendor | Product | Affected versions (per CVE record) |
|---|---|---|
| agentfront | enclave | < 2.11.1 |
Severity scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_M | 3.1 | 10 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
| GitHub | 3.1 | 10.0 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
- Attack vector: network (remotely reachable)
- Attack complexity: low
- Privileges required: none (no login)
- User interaction: none
- Scope: changed (can affect other components)
CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.
Exploitation and urgency
- 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.
Timeline
- — CVE record last updated
- — CVE record published by GitHub_M
- — GitHub-reviewed advisory GHSA-f229-3862-4942 published (critical)
Sources and references
Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.
Vulnerability records
- GitHub Advisory GHSA-f229-3862-4942 github.com
- CVE.org record CVE-2026-27597 cve.org
- NVD entry CVE-2026-27597 nvd.nist.gov
Other references from the CVE record and advisory
- github.com github.com
- github.com github.com