CVE-2026-92933: Exposure of Sensitive Information to an Unauthorized Actor in patriksimek vm2
CVE-2026-92933 is a vulnerability in the vm2 sandbox for Node.js that affects versions prior to 3.11.8. It allows sandboxed code to access the host's util module in an unfiltered manner, exposing a stack-introspection API that reveals the full call stack with sensitive details such as absolute file paths, function names, and line numbers. This exposure bypasses previous host-frame redaction protections. The issue is fixed in vm2 version 3.11.8.
AI Analysis
Technical Summary
The vm2 sandbox exposes the host Node.js util module to sandboxed code as an unfiltered shallow copy in versions <= 3.11.7. On Node.js versions 22.9 and later, this exposure allows sandboxed code to call util.getCallSites(), which returns the full call stack of the host process, including sensitive information like absolute file paths, function names, and line numbers related to vm2 internals and the embedding application. This bypasses the host-frame redaction implemented for a previous vulnerability (GHSA-v27g-jcqj-v8rw) that only applied to the Error.prepareStackTrace formatting channel. The vulnerability is resolved in vm2 version 3.11.8.
Potential Impact
Sandboxed untrusted code can obtain detailed information about the host environment's call stack, including absolute file paths and function names, which may lead to exposure of sensitive information about the host application and its internals. This information disclosure could aid attackers in crafting further attacks or understanding the host environment.
Mitigation Recommendations
Upgrade vm2 to version 3.11.8 or later, where this vulnerability is fixed. No other mitigations are indicated or required according to the available data.
CVE-2026-92933: Exposure of Sensitive Information to an Unauthorized Actor in patriksimek vm2
Description
CVE-2026-92933 is a vulnerability in the vm2 sandbox for Node.js that affects versions prior to 3.11.8. It allows sandboxed code to access the host's util module in an unfiltered manner, exposing a stack-introspection API that reveals the full call stack with sensitive details such as absolute file paths, function names, and line numbers. This exposure bypasses previous host-frame redaction protections. The issue is fixed in vm2 version 3.11.8.
CVSS v4.0
Score 6.9medium
Affected software
patriksimek
vm2
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vm2 sandbox exposes the host Node.js util module to sandboxed code as an unfiltered shallow copy in versions <= 3.11.7. On Node.js versions 22.9 and later, this exposure allows sandboxed code to call util.getCallSites(), which returns the full call stack of the host process, including sensitive information like absolute file paths, function names, and line numbers related to vm2 internals and the embedding application. This bypasses the host-frame redaction implemented for a previous vulnerability (GHSA-v27g-jcqj-v8rw) that only applied to the Error.prepareStackTrace formatting channel. The vulnerability is resolved in vm2 version 3.11.8.
Potential Impact
Sandboxed untrusted code can obtain detailed information about the host environment's call stack, including absolute file paths and function names, which may lead to exposure of sensitive information about the host application and its internals. This information disclosure could aid attackers in crafting further attacks or understanding the host environment.
Mitigation Recommendations
Upgrade vm2 to version 3.11.8 or later, where this vulnerability is fixed. No other mitigations are indicated or required according to the available data.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-09-17T12:42:34.828Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6aac65c355bf5e2cf5fdf67c
Added to database: 09/17/2026, 22:12:19 UTC
Last enriched: 09/17/2026, 22:16:16 UTC
Last updated: 09/18/2026, 01:01:51 UTC
Views: 6
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