Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
AV AC PR UI S C I A CVSS EPSS %ile KEV N L N N U N N H 7.5 .0042 35.1 —
AFFECTED Product Versions Fixed vm2 < 3.11.0 – —
TIMELINE May 4 Reserved by GitHub_M May 13 Published (CNA: GitHub_M) Aug 6 EXPLOIT PUBLISHED — CVE-2026-44004 (patriksimek vm2). Public exploit reference added.
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.
| Date | Event | Detail |
|---|---|---|
| May 4, 2026 | Reserved | Reserved by GitHub_M |
| May 13, 2026 | Published | Published (CNA: GitHub_M) |
| August 6, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-44004 (patriksimek vm2). Public exploit reference added. |
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|---|---|---|---|
| patriksimek | vm2 | — | < 3.11.0 | — |
Authoritative record: CVE-2026-44004 at cve.org
Vendors: patriksimek
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-44004 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.