# CVE-2026-25533: Enclave has a sandbox escape via infinite recursion and error objects

> Attackers can escape the Enclave JavaScript sandbox via recursion and error object exploits, enabling arbitrary code execution on the host.

- **Severity:** Medium 6.4 (`CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 6 Feb 2026
- **Updated:** 9 Feb 2026
- **Also known as:** GHSA-x39w-8vm5-5m3p

## What is CVE-2026-25533?

CVE-2026-25533 is a medium-severity code injection vulnerability in agentfront enclave, published on 6 Feb 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Enclave is a secure JavaScript sandbox designed for safe AI agent code execution. Prior to 2.10.1, the existing layers of security in enclave-vm are insufficient: The AST sanitization can be bypassed with dynamic property accesses, the hardening of the error objects does not cover the peculiar behavior or the vm module and the function constructor access prevention can be side-stepped by leveraging host object references. This vulnerability is fixed in 2.10.1.

Weakness: CWE-835 (Loop with Unreachable Exit Condition)

## Which versions are affected by CVE-2026-25533?

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


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `@enclave-vm/core` | npm | All versions | 2.10.1 |
| `@enclave-vm/core` | npm | All versions | 2.10.1 |
| `enclave-vm` | npm | All versions to 2.7.0 | None |
| `enclave-vm` | npm | All versions to 2.7.0 | None |

Products: Agentfront Enclave.

## How do I fix CVE-2026-25533?

Upgrade @enclave-vm/core to 2.10.1 or later.

## Is CVE-2026-25533 being exploited?

There is no known exploitation of CVE-2026-25533 in the wild and no public exploit code.

## Other vulnerabilities in agentfront enclave

- [CVE-2026-27597](https://insights.sbomify.com/CVE-2026-27597/): @enclave-vm/core is vulnerable to Sandbox Escape (critical 10.0)
- [CVE-2026-22686](https://insights.sbomify.com/CVE-2026-22686/): Sandbox Escape via Host Error Prototype Chain in enclave-vm (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-25533 and fix it if it is affected.

What it is: CVE-2026-25533 is a medium-severity code injection vulnerability in agentfront enclave, published on 6 Feb 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-25533 in the wild and no public exploit code.

Affected packages and fixed versions:
- @enclave-vm/core (npm): affected all versions; fixed in 2.10.1
- @enclave-vm/core (npm): affected all versions; fixed in 2.10.1
- enclave-vm (npm): affected all versions up to 2.7.0; no fix listed
- enclave-vm (npm): affected all versions up to 2.7.0; no fix listed

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-2026-25533/ (Markdown: https://insights.sbomify.com/CVE-2026-25533/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-25533
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-25533
- OSV: https://osv.dev/vulnerability/CVE-2026-25533

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-25533/
Summaries are generated and may contain mistakes; the official description above is the record.