CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се по мрежата, без особени условия, без вход и без действие от потребителя.
- Експлоатация: има публичен пример за експлоатация
- Атаката може да се автоматизира
Описание
Оригинално описание
vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.4, the BaseHandler.set trap in bridge.js (line 1231) ignores the receiver parameter and unconditionally writes to the host target object. Per the Proxy set trap specification, when receiver !== proxy (e.g., when a child object inherits from the proxy via Object.create), the property assignment should create an own property on the receiver, not on the proxy target. The current implementation always calls otherReflectSet(object, key, value) against the host target, causing all inherited property writes to leak through to the host object. This bug provides an alternative attack vector for writing dangerous cross-realm Symbol keys (e.g., nodejs.util.promisify.custom) to host objects, bypassing any future per-trap isDangerousCrossRealmSymbol guard on the direct set path. This issue has been patched in version 3.11.4.
Засегнати продукти
- patriksimek vm2: < 3.11.4
Вид слабост
История
- 12 юни 2026 Публикувано
Други уязвимости в patriksimek vm2
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-47209
- https://nvd.nist.gov/vuln/detail/CVE-2026-47209
- https://github.com/patriksimek/vm2/security/advisories/GHSA-c4cf-2hgv-2qv6
- https://github.com/patriksimek/vm2/commit/26d0318b5e6555be4b187ba05d6cf378ccecfe22
- https://github.com/patriksimek/vm2/releases/tag/v3.11.4