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TI-2026-35202 Aliases CVE-2026-47698GHSA-cfcw-xp6x-25gj

vm2: Sandbox Breakout Using Dangerous Host Proto Mutators

Priority HIGH 82CWE-913Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Red Hat.

Summary

vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.6, lib/bridge.js and lib/setup-sandbox.js fail to block stacked indirection through Function.prototype.call around dangerous host prototype getter and setter mutators, allowing sandbox code to sever a host intrinsic's prototype chain and reach e.constructor.constructor for arbitrary host command execution. This issue is fixed in version 3.11.6.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00971 62nd percentileScored 2026-11-07
Fix Fixed vm2 (patriksimek): 3.11.6vm2 (npm): 3.11.6Red Hat: 6 advisories

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
patriksimekvm2before 3.11.63.11.6Patch availableCNA
—vm2 (npm)before 3.11.63.11.6Patch availableGHSA-cfcw-xp6x-25gj
  • vm2 Vendorpatriksimek Affected before 3.11.6 Fixed in 3.11.6 Patch available CNA
  • vm2 (npm) Vendor— Affected before 3.11.6 Fixed in 3.11.6 Patch available GHSA-cfcw-xp6x-25gj

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:vm2_project:vm2:*:*:*:*:*:*:*:*——patriksimek
  • cpe:2.3:a:vm2_project:vm2:*:*:*:*:*:*:*:* Versions — — ·patriksimek

Remediation

  • Fix · CNA vm2 (patriksimek) Fixed in 3.11.6
  • Fix · GHSA-cfcw-xp6x-25gj vm2 (npm) Fixed in 3.11.6 Advisory →

Red Hat 6 advisories

  • RHSA-2026:91651 Released 2026-10-28 · Red Hat rating Critical
    Red Hat Developer Hub 1.9.10 release.
    • Red Hat Developer Hub 1.9 registry.redhat.io/rhdh/rhdh-hub-rhel9, registry.redhat.io/rhdh/rhdh-rhel9-operator
  • RHSA-2026:82151 Released 2026-10-13 · Red Hat rating Critical
    Ansible automation portal Red Hat Enterprise Linux Images
    • Red Hat Ansible Automation Platform 2.2 registry.redhat.io/ansible-automation-platform/bootc-automation-portal-rhel9
  • RHSA-2026:80644 Released 2026-10-12 · Red Hat rating Critical
    Ansible plug-ins for Red Hat Developer Hub Product Release Update
    • Red Hat Ansible Automation Platform 2.2 registry.redhat.io/ansible-automation-platform/automation-portal
Show 3 more Red Hat advisories
  • RHSA-2026:80603 Released 2026-10-12 · Red Hat rating Critical
    Ansible plug-ins for Red Hat Developer Hub Product Release Update
    • Red Hat Ansible Automation Platform 2.1 registry.redhat.io/ansible-automation-platform/automation-portal
  • RHSA-2026:79088 Released 2026-10-08 · Red Hat rating Critical
    Red Hat Developer Hub 1.10.5 release.
    • Red Hat Developer Hub 1.10 registry.redhat.io/rhdh/rhdh-hub-rhel9, registry.redhat.io/rhdh/rhdh-rhel9-operator
  • RHSA-2026:76788 Released 2026-10-06 · Red Hat rating Critical
    Red Hat Developer Hub 1.10.5 Plugin Catalog GA plugins release.
    • Red Hat Developer Hub 1.10 registry.redhat.io/rhdh/red-hat-developer-hub-backstage-plugin-lightspeed, registry.redhat.io/rhdh/red-hat-developer-hub-backstage-plugin-lightspeed-backend, registry.redhat.io/rhdh/red-hat-developer-hub-backstage-plugin-orchestrator +4

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Ansible Automation Platform 2.1Fixed RHSA-2026:80603
Red Hat Ansible Automation Platform 2.2Fixed RHSA-2026:80644, RHSA-2026:82151
Red Hat Developer Hub 1.10Fixed RHSA-2026:76788, RHSA-2026:79088
Red Hat Developer Hub 1.9Fixed RHSA-2026:91651
Not affected: 2 products
  • Red Hat Developer Hub 1.10
  • Red Hat Developer Hub 1.9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-47698
  2. 2026-10-03 Alias added: GHSA-cfcw-xp6x-25gj
  3. 2026-10-07 Fix available: RHSA-2026:76788 · Red Hat
  4. 2026-10-07 Fix available: Red Hat Developer Hub 1.10 · Red Hat
  5. 2026-10-09 Fix available: RHSA-2026:79088 · Red Hat
  6. 2026-10-09 Affected versions changed · Red Hat
  7. 2026-10-13 Fix available: RHSA-2026:80603 · Red Hat
  8. 2026-10-13 Fix available: RHSA-2026:80644 · Red Hat
  9. 2026-10-13 Fix available: Red Hat Ansible Automation Platform 2.1, Red Hat Ansible Automation Platform 2.2 · Red Hat
  10. 2026-10-13 Fix available: RHSA-2026:82151 · Red Hat
  11. 2026-10-30 Fix available: RHSA-2026:91651 · Red Hat
  12. 2026-10-30 Fix available: Red Hat Developer Hub 1.9 · Red Hat

References

Other 4

  • TI-2023-14382 Sandbox Escape in vm2 CVSS 3.1CRITICAL 10.0
  • TI-2023-13478 vm2 Sandbox Escape vulnerability CVSS 3.1CRITICAL 10.0
  • TI-2026-63070 vm2 before 3.12.1 Sandbox Escape via Promise Symbol.species CVSS 4.0CRITICAL 10.0
  • TI-2026-63067 vm2 before 3.12.1 Sandbox Escape RCE via Non-Strict Host Function CVSS 4.0CRITICAL 10.0
  • TI-2026-62623 vm2 before 3.11.6 Process-wide State Exposure via os and dns CVSS 4.0CRITICAL 10.0
  • TI-2026-62618 vm2 before 3.11.8 Sandbox Escape via NodeVM CVSS 4.0CRITICAL 10.0
See all 80 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences