CVE-2026-44004
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.
Schwachstellenklasse
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.
Betroffene Produkte
- vm2_project vm2
Quellen
- https://github.com/patriksimek/vm2/security/advisories/GHSA-6785-pvv7-mvg7
- https://access.redhat.com/errata/RHSA-2026:50850
- https://access.redhat.com/security/cve/CVE-2026-44004
- https://bugzilla.redhat.com/show_bug.cgi?id=2477195
- https://github.com/patriksimek/vm2/security/advisories/GHSA-6785-pvv7-mvg7
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44004.json
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