Bug 2477195 (CVE-2026-44004) - CVE-2026-44004 vm2: vm2: Denial of Service via host memory exhaustion
Summary: CVE-2026-44004 vm2: vm2: Denial of Service via host memory exhaustion
Keywords:
Status: NEW
Alias: CVE-2026-44004
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-05-13 18:02 UTC by OSIDB Bzimport
Modified: 2026-06-16 22:52 UTC (History)
17 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-05-13 18:02:00 UTC 
vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, sandboxed code can call Buffer.alloc() with an arbitrary size to allocate memory directly on the host heap. Because Buffer.alloc is a synchronous C++ native call, vm2's timeout option cannot interrupt it. A single request can exhaust host memory and crash the process with a FATAL ERROR: Reached heap limit. This vulnerability is fixed in 3.11.0.
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