CVE-2026-22686Public exploitNetwork attack vector

Host code execution via Error prototype chain

Published Jan 13, 2026 · Updated Jan 13, 2026

Sandbox escape in AgentFront Enclave before 2.7.0 allows remote attackers to execute arbitrary code in the host Node.js runtime. Failed tool invocations return host-realm Error objects whose prototype chains expose the host Function constructor to sandboxed code. Exploitation requires untrusted JavaScript execution and an induced tool failure; successful escape grants the sandboxed code access to the host environment, filesystem, and network.

CVSS severity10.0
Critical
EPSS probability0.67%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Sandbox escape in AgentFront Enclave before 2.7.0 allows remote attackers to execute arbitrary code in the host Node.js runtime. Failed tool invocations return host-realm Error objects whose prototype chains expose the host Function constructor to sandboxed code. Exploitation requires untrusted JavaScript execution and an induced tool failure; successful escape grants the sandboxed code access to the host environment, filesystem, and network.

The record

CVE
CVE-2026-22686
Published
Jan 13, 2026
Updated
Jan 13, 2026
Vendor
AgentFront
Product
Enclave
Classifications
CWE-94, CWE-693, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 13, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 13, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 2.7.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

AgentFront · Enclaveversion=< 2.7.0

Published CVSS scores

10.0GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
CWE-693Protection Mechanism Failure
T1059.007JavaScript/JScript

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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