CVE-2026-93606
vm2: vm2 before 3.12.1 Sandbox Escape via Promise Symbol.species
Severidad por fuente
La etiqueta propia de Trivy es CRITICAL. Crítica según Red Hat.
Descripción
vm2 (npm) versions 3.12.0 and earlier contain a sandbox escape in `VM` and `NodeVM`. When an embedder exposes a host API that returns a host-realm Promise, the bridge's rejection sanitizer (hostPromiseSanitizeReject / makeSanitizedPromiseCallback / normalizeHostPromiseCallbacks in lib/bridge.js) only wraps `then`/`catch` rejection slots that hold a function, and the sandbox-side `Symbol.species`/`.then` neutralization is installed only on the sandbox intrinsic `Promise.prototype`, so it never applies to a host Promise. Code running inside the sandbox can overwrite `p.constructor[Symbol.species]` on the host Promise and then call `p.then()` with no `onRejected` handler; V8 substitutes its internal Thrower, which re-throws the raw host rejection value into a resolve/reject closure captured by the attacker. This delivers an unsanitized, fully functional bridge proxy of the host object to sandboxed code, bypassing handleException and hostPromiseSanitizeReject. If the rejection value is host-pivotable (for example a host `process` object), this results in arbitrary code execution on the host. Fixed in 3.12.1.
Paquetes afectados y versiones corregidas
| Fuente | Paquete | Corregido en |
|---|---|---|
| seal npm::Seal Security Database | @seal-security/vm2, vm2 | 3.9.11-sp999, 3.9.12-sp999, 3.9.13-sp999, 3.9.14-sp999 |
Mostrar las 2 entradas de 1 fuente
| Fuente | Paquete | Corregido en |
|---|---|---|
| seal npm::Seal Security Database | @seal-security/vm2 | 3.9.11-sp999, 3.9.12-sp999, 3.9.13-sp999, 3.9.14-sp999 |
| seal npm::Seal Security Database | vm2 | 3.9.11-sp999, 3.9.12-sp999, 3.9.13-sp999, 3.9.14-sp999 |
Referencias
- https://access.redhat.com/security/cve/CVE-2026-93606
- https://github.com/patriksimek/vm2/security/advisories/GHSA-6454-5x88-m6jw
- https://nvd.nist.gov/vuln/detail/CVE-2026-93606
- https://www.cve.org/CVERecord?id=CVE-2026-93606
- https://www.vulncheck.com/advisories/vm2-before-3.12.1-sandbox-escape-via-promise-symbol-species