CVE-2026-100722
Description
A flaw was found in vm2. An attacker who can execute untrusted code within the sandbox can trigger an unhandled error by instantiating host-provided functions that return a rejected asynchronous operation (Promise). Due to missing error handling in the sandbox-to-host object construction trap, the unhandled failure crosses into the host runtime. This condition causes the host application to terminate unexpectedly, resulting in a Denial of Service (DoS).
Statement
Red Hat has evaluated this vulnerability as having a Moderate security impact because exploitation leads solely to a denial of service through host process termination rather than remote code execution or sandbox escape. The flaw can only be triggered if the hosting application explicitly exposes a constructor returning a rejected Promise to the sandboxed runtime, requiring specific integration conditions. Consequently, the blast radius is confined to service availability for containers embedding this library, such as services within Red Hat Developer Hub and Ansible Automation Platform.
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 | 6.8 | N/A | 6.8 |
| Attack Vector | Network | N/A | Network |
| Attack Complexity | High | N/A | High |
| Privileges Required | None | N/A | None |
| User Interaction | None | N/A | None |
| Scope | Changed | N/A | Changed |
| Confidentiality | None | N/A | None |
| Integrity Impact | None | N/A | None |
| Availability Impact | High | N/A | High |
Vector
Red Hat: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
cve.org: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
Frequently Asked Questions
Not sure what something means? Check out our Security Glossary.
Want to get errata notifications? Sign up here.
