Bug 2517646 (CVE-2026-47698) - CVE-2026-47698 vm2: vm2: Sandbox Breakout Using Dangerous Host Proto Mutators
Summary: CVE-2026-47698 vm2: vm2: Sandbox Breakout Using Dangerous Host Proto Mutators
Keywords:
Status: NEW
Alias: CVE-2026-47698
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-08-17 21:12 UTC by OSIDB Bzimport
Modified: 2026-09-30 09:54 UTC (History)
16 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-08-17 21:12:03 UTC 
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.
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