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 H L N C H H H 8.5 .0072 51.1 —
AFFECTED Product Versions Fixed vm2 3.10.5 – —
TIMELINE May 4 Reserved by GitHub_M May 13 Published (CNA: GitHub_M) Aug 6 EXPLOIT PUBLISHED — CVE-2026-43998 (patriksimek vm2). Public exploit reference added.
vm2 is an open source vm/sandbox for Node.js. In 3.10.5, NodeVM's require.root path restriction can be bypassed using filesystem symlinks, allowing sandboxed code to load modules from outside the allowed root directory in host context. Because path validation uses path.resolve() (which does not dereference symlinks) but module loading uses Node's native require() (which does), an attacker can load arbitrary host-realm modules and achieve remote code execution. 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-2026-43998 (patriksimek vm2). Public exploit reference added. |
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|---|---|---|---|
| patriksimek | vm2 | — | 3.10.5 | — |
Authoritative record: CVE-2026-43998 at cve.org
Vendors: patriksimek
Weaknesses: CWE-59
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-43998 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.