CVE-2026-92947
Description
A flaw was found in vm2. The sandbox environment inadvertently exposes the host system's shared memory buffer pool to sandboxed code. An attacker running untrusted code inside the sandbox can access and modify these shared buffers, resulting in unauthorized information disclosure of host memory or a potential Denial of Service (DoS).
Statement
This vulnerability is rated as an Important severity flaw because an attacker capable of executing arbitrary code within a sandboxed runtime can breach isolation boundaries, accessing and modifying data stored in host-realm memory. In affected Red Hat products, services running untrusted JavaScript inside sandboxed containers or processes risk exposure of adjacent host memory contents and potential service disruption. Exploitation requires an attacker to have the ability to supply and execute untrusted code within the sandbox environment.
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).
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 8.3 | N/A | 10 |
| Attack Vector | Network | N/A | Network |
| Attack Complexity | Low | N/A | Low |
| Privileges Required | None | N/A | None |
| User Interaction | None | N/A | None |
| Scope | Changed | N/A | Changed |
| Confidentiality | Low | N/A | High |
| Integrity Impact | Low | N/A | High |
| Availability Impact | Low | N/A | Low |
Vector
Red Hat: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
cve.org: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:L
Understanding the Weakness (CWE)
Confidentiality
Technical Impact: Read Application Data
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