Answer in brief
CVE-2026-47698 records a Critical severity (CVSS 9.8) vulnerability in vm2: Sandbox Breakout Using Dangerous Host Proto Mutators. The current sources do not mark it as known exploited. The current feed maps patriksimek/vm2 (generic), vm2 (npm), vm2 (npm). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 9.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps patriksimek/vm2 (generic), vm2 (npm), vm2 (npm). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| patriksimek/vm2generic | < 3.11.6 | Not reported |
| vm2npm | >=0 <3.11.6 | 3.11.6 |
| vm2npm | <=3.11.5 | 3.11.6 |
Published upstream
Aug 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 17, 2026
vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.6, lib/bridge.js and lib/setup-sandbox.js fail to block stacked indirection through Function.prototype.call around dangerous host prototype getter and setter mutators, allowing sandbox code to sever a host intrinsic's prototype chain and reach e.constructor.constructor for arbitrary host command execution. This issue is fixed in version 3.11.6.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-47698 records a Critical severity (CVSS 9.8) vulnerability in vm2: Sandbox Breakout Using Dangerous Host Proto Mutators. The current sources do not mark it as known exploited. The current feed maps patriksimek/vm2 (generic), vm2 (npm), vm2 (npm). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 9.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps patriksimek/vm2 (generic), vm2 (npm), vm2 (npm). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| patriksimek/vm2generic | < 3.11.6 | Not reported |
| vm2npm | >=0 <3.11.6 | 3.11.6 |
| vm2npm | <=3.11.5 | 3.11.6 |
Published upstream
Aug 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 17, 2026
vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.6, lib/bridge.js and lib/setup-sandbox.js fail to block stacked indirection through Function.prototype.call around dangerous host prototype getter and setter mutators, allowing sandbox code to sever a host intrinsic's prototype chain and reach e.constructor.constructor for arbitrary host command execution. This issue is fixed in version 3.11.6.
Quoted source text, attributed separately from HOL analysis.