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    CVE-2026-92944

    vm2 versions 3.10.2 through 3.11.6 contain a sandbox escape vulnerability on Node.js 26 where Promise.prototype.finally() bypasses vm2's wrapper protections due to a stale PromiseThenLookupChain protector in V8 14.6. Attackers can exploit this by creating an async function that returns a Promise with an attacker-controlled constructor Symbol.species, allowing them to reach the host Function constructor and process object for arbitrary code execution.

    Published:Sep 17, 2026
    Last Modified:Sep 19, 2026
    EPS:Sep 17, 2026
    EPSS Score:0.0058
    CVSS Score:9.8

    Affected Products

    Vendor
    Patriksimek
    Product
    Vm2

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-693 Protection Mechanism Failure

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs
    CAPEC-107 Cross Site Tracing
    CAPEC-127 Directory Indexing
    CAPEC-17 Using Malicious Files
    CAPEC-20 Encryption Brute Forcing
    CAPEC-22 Exploiting Trust in Client
    CAPEC-237 Escaping a Sandbox by Calling Code in Another Language
    CAPEC-36 Using Unpublished Interfaces or Functionality
    CAPEC-477 Signature Spoofing by Mixing Signed and Unsigned Content
    CAPEC-480 Escaping Virtualization
    CAPEC-51 Poison Web Service Registry
    CAPEC-57 Utilizing REST's Trust in the System Resource to Obtain Sensitive Data
    CAPEC-59 Session Credential Falsification through Prediction
    CAPEC-65 Sniff Application Code
    CAPEC-668 Key Negotiation of Bluetooth Attack (KNOB)
    CAPEC-74 Manipulating State
    CAPEC-87 Forceful Browsing

    Related CVEs

    CVE-2026-100723 (CVSS 6.9) — vm2 before 3.12.2 does not apply its Buffer backing-store ownership invariant (byteOffset === 0 and buffer.byt…
    CVE-2026-100722 (CVSS 8.9) — vm2 before 3.12.2 does not apply host-side Promise rejection handling in the sandbox-to-host construct trap. I…
    CVE-2026-100721 (CVSS 9.5) — vm2 before 3.12.2 contains an authorization bypass in the NodeVM external-module resolver. When an embedder co…
    CVE-2026-93606 (CVSS 10) — vm2 (npm) versions 3.12.0 and earlier contain a sandbox escape in `VM` and `NodeVM`. When an embedder exposes …
    CVE-2026-93605 (CVSS 10) — vm2 NodeVM versions before 3.12.1 contain a sandbox escape vulnerability where the DANGEROUS_BUILTINS denylist…
    CVE-2026-93604 (CVSS 6.9) — vm2 through 3.12.0 exposes Node.js's crypto.setFips() function to untrusted guest code when an embedder explic…
    CVE-2026-93603 (CVSS 10) — vm2 through 3.12.0 (fixed in 3.12.1) does not correctly handle a nullish `this` receiver in the apply trap of …
    CVE-2026-92962 (CVSS 2.1) — vm2 is a sandbox for running untrusted JavaScript. In vm2 versions up to and including 3.11.3, the defaultSand…
    CVE-2026-92963 (CVSS 6.9) — vm2 versions before 3.11.2 fail to properly restrict access to the VM2_INTERNAL_STATE_DO_NOT_USE_OR_PROGRAM_WI…
    CVE-2026-92961 (CVSS 8.7) — vm2 before 3.11.6 fails to enforce bufferAllocLimit on ArrayBuffer, SharedArrayBuffer, and TypedArray construc…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High