Is CVE-2026-22686 actively exploited?

No active exploitation of CVE-2026-22686 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-22686 be exploited remotely?

Yes. CVE-2026-22686 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-22686?

CVE-2026-22686 has a CVSS score of 10.0 (CRITICAL).

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CRITICAL

CVE-2026-22686

CWE-94Published: January 14, 2026· Updated: Jun 17, 2026

10.0

CVSS v3.1

Official Description

Enclave is a secure JavaScript sandbox designed for safe AI agent code execution. Prior to 2.7.0, there is a critical sandbox escape vulnerability in enclave-vm that allows untrusted, sandboxed JavaScript code to execute arbitrary code in the host Node.js runtime. When a tool invocation fails, enclave-vm exposes a host-side Error object to sandboxed code. This Error object retains its host realm prototype chain, which can be traversed to reach the host Function constructor. An attacker can intentionally trigger a host error, then climb the prototype chain. Using the host Function constructor, arbitrary JavaScript can be compiled and executed in the host context, fully bypassing the sandbox and granting access to sensitive resources such as process.env, filesystem, and network. This breaks enclave-vm’s core security guarantee of isolating untrusted code. This vulnerability is fixed in 2.7.0.

NVD Source

Technical Analysis

CVE-2026-22686 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 10.0.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.