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TI-2026-62605 Aliases CVE-2026-92942GHSA-r4fx-v8hh-22mvGHSA-vjcv-9j33-wj62

vm2 before 3.11.7 Timeout Bypass via FinalizationRegistry

Priority HIGH 77CWE-400Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-400.

Summary

vm2 before 3.11.7 (affected versions <= 3.11.6) does not enforce the VM({ timeout }) option on code executed outside the synchronous VM#run() call. The timeout only wraps the single call to _runScript() via doWithTimeout() in lib/vm.js, and FinalizationRegistry and WeakRef are exposed to sandboxed code unmodified (they are not among the hardened globals in lib/setup-sandbox.js). Sandboxed code can register a FinalizationRegistry cleanup callback against an object and then drop the only strong reference to it; vm.run() returns within the configured timeout, but when the V8 garbage collector later reclaims the object it invokes the sandboxed cleanup callback outside any vm2 timeout accounting. A busy loop in that callback blocks the host event loop for an unbounded period, resulting in denial of service. The time of invocation depends on the garbage collector (e.g. under memory pressure or with --expose-gc).

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00488 42nd percentileScored 2026-11-07
Fix Fixed vm2 (patriksimek): 3.11.7vm2 (npm): 3.11.7Red Hat: 6 advisories

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

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 3.11.73.11.7Patch availableCNA
—vm2 (npm)before 3.11.73.11.7Patch availableGHSA-r4fx-v8hh-22mv
  • vm2 Vendorpatriksimek Affected before 3.11.7 Fixed in 3.11.7 Patch available CNA
  • vm2 (npm) Vendor— Affected before 3.11.7 Fixed in 3.11.7 Patch available GHSA-r4fx-v8hh-22mv

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 3.11.7
  • Fix · GHSA-r4fx-v8hh-22mv vm2 (npm) Fixed in 3.11.7 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-2026:79088 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
Show 3 more Red Hat advisories
  • 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
  • RHSA-2026:72722 Released 2026-09-28 · Red Hat rating Important
    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
  • RHSA-2026:72712 Released 2026-09-28 · Red Hat rating Important
    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

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    patriksimek vm2 3.11.7

    20 records Highest priority Priority HIGH 13 HIGH, 6 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2026-62610 vm2 before 3.11.7 Memory Disclosure via Buffer PoolPriority HIGH 82
    • TI-2026-62604 vm2 3.11.3 before 3.11.7 TLS Trust Store ManipulationPriority HIGH 82
    • TI-2026-62600 vm2 3.11.6 Remote Code Execution via Promise call/applyPriority HIGH 82
    Show all 20 records →

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-2026:72712
Red Hat Ansible Automation Platform 2.2Fixed RHSA-2026:72722, 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-2026-92942
  2. 2026-10-03 Alias added: GHSA-vjcv-9j33-wj62
  3. 2026-10-06 Alias added: GHSA-r4fx-v8hh-22mv
  4. 2026-10-06 Fix available: npm/[email protected] · GHSA-r4fx-v8hh-22mv
  5. 2026-10-06 CVSS score added · GHSA-r4fx-v8hh-22mv
  6. 2026-10-06 Weakness changed · GHSA-r4fx-v8hh-22mv
  7. 2026-10-06 5 new references · GHSA-r4fx-v8hh-22mv
  8. 2026-10-07 Fix available: RHSA-2026:76788 · Red Hat
  9. 2026-10-07 Fix available: Red Hat Developer Hub 1.10 · Red Hat
  10. 2026-10-09 Fix available: RHSA-2026:79088 · Red Hat
  11. 2026-10-09 Affected versions changed · Red Hat
  12. 2026-10-13 Affected versions changed · Red Hat
  13. 2026-10-13 Fix available: RHSA-2026:82151 · Red Hat
  14. 2026-10-30 Fix available: RHSA-2026:91651 · Red Hat
  15. 2026-10-30 Fix available: Red Hat Developer Hub 1.9 · Red Hat

References

Advisory 2

Other 3

  • 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