CVE-2026-26332
Description
A flaw was found in vm2, an open-source sandbox for Node.js. This vulnerability allows a remote attacker to escape the sandbox environment by exploiting the SuppressedError mechanism. Successful exploitation can lead to arbitrary code execution on the host system, compromising the integrity and confidentiality of the affected system.
Statement
This is an Important flaw in the vm2 Node.js sandbox, enabling a remote attacker to escape the sandbox and achieve arbitrary code execution. This happens because the sandbox fails to run rejection call backs within the sandbox isolation, an attacker that have privileges or tricks the user to run a maliciously crafted code can leverage that to cause suppressed errors to be handled in the host side instead of in the local side leading to the sandbox escape.
Red Hat Developer Hub is not affected by this vulnerability as the vm2 package is a development dependency and the code could not be reached by an adversary.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 9.1 | 10 | 9.1 |
| Attack Vector | Network | Network | Network |
| Attack Complexity | Low | Low | Low |
| Privileges Required | High | None | High |
| User Interaction | None | None | None |
| Scope | Changed | Changed | Changed |
| Confidentiality | High | High | High |
| Integrity Impact | High | High | High |
| Availability Impact | High | High | High |
Vector
Red Hat: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
NVD: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
cve.org: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Understanding the Weakness (CWE)
Access Control
Technical Impact: Gain Privileges or Assume Identity; Bypass Protection Mechanism
The exploitation of a weakness in low-privileged areas of the software can be leveraged to reach higher-privileged areas without having to overcome any additional obstacles.
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