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 C H H H 10.0 .0098 59.3 —
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-2026-43997 (patriksimek vm2). Public exploit reference added.
vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, it is possible to obtain the host Object. There are various ways to use the host Object, to escape the sandbox, one example would be using HostObject.getOwnPropertySymbols to obtain Symbol(nodejs.util.inspect.custom). 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-2026-43997 (patriksimek vm2). Public exploit reference added. |
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|---|---|---|---|
| patriksimek | vm2 | — | < 3.11.0 | — |
Authoritative record: CVE-2026-43997 at cve.org
Vendors: patriksimek
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-43997 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.