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CVE-2026-22686VulnerabilityPublished

CVE-2026-22686: agentfront enclave · Protection Mechanism Failure

Affects agentfront enclaveSource CVE Database V5

0

Not known to be exploited · CVSS 10.0 Critical : upgrade to 2.7.0 as a priority.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 3.1 base score
10.0Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.7% chance of exploitation in 30 days – higher than 54% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 2.7.0
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 13 Jan 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.

What to do

Upgrade enclave and agentfront/enclave to 2.7.0.

Affected software

ProductAffectedFixed in
agentfrontenclaveAffected
  • <2.7.0
Fixed in
  • 2.7.0
npmagentfront/enclavepkg:npm/agentfront/enclaveOther threatsAffected
  • <2.7.0
Fixed in
  • 2.7.0

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

European organizations should immediately upgrade all instances of agentfront enclave to version 2.7.0 or later to remediate this vulnerability. In addition, organizations should implement strict code review and validation processes for any untrusted JavaScript code executed within sandboxes. Employ runtime monitoring and anomaly detection to identify unusual behaviors indicative of sandbox escapes. Restrict network access and filesystem permissions for Node.js processes running enclave to minimize potential damage from exploitation. Utilize containerization or virtualization to isolate enclave processes further. Finally, maintain an incident response plan tailored to code execution breaches and conduct penetration testing to verify sandbox integrity post-patching.

Description

CVE-2026-22686 is a critical sandbox escape vulnerability in the agentfront enclave JavaScript sandbox prior to version 2.7.0. It allows untrusted sandboxed JavaScript code to execute arbitrary code in the host Node.js runtime by exploiting the exposure of a host-side Error object and traversing its prototype chain to reach the host Function constructor. This enables attackers to bypass the sandbox isolation, gaining access to sensitive host resources such as environment variables, filesystem, and network. The vulnerability has a CVSS score of 10, indicating critical severity with no authentication or user interaction required. It is fixed in enclave version 2.7.0.

References

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