CVE-2026-100722

Published: Set 27, 2026 Last Modified: Set 28, 2026

ExploitDB:

Other exploit source:

Google Dorks:

HIGH 8,9

Source: [email protected]

Attack Vector: network

Attack Complexity: low

Privileges Required: none

User Interaction: none

Confidentiality: N/A

Integrity: N/A

Availability: N/A

MEDIUM 6,8

Source: [email protected]

Attack Vector: network

Attack Complexity: high

Privileges Required: none

User Interaction: none

Scope: changed

Confidentiality: none

Integrity: none

Availability: high

Description

AI Translation Available

vm2 before 3.12.2 does not apply host-side Promise rejection handling in the sandbox-to-host construct trap. In BaseHandler, the apply trap calls markHostPromiseHandled() on the returned value, but the adjacent construct path returns the result of Reflect.construct without the same sanitization. If an embedder exposes a constructable host function whose constructor returns a native rejected Promise, an untrusted script executed via VM.run can invoke it with `new` and ignore the result; the rejected host Promise crosses the bridge unhandled and, under Node's strict unhandled-rejection policy, is promoted to an uncaught exception that terminates the host process.

248

Uncaught Exception

Draft

Abstraction: Base Structure: Simple

Common Consequences

Security Scopes Affected:

Availability Confidentiality

Potential Impacts:

Dos: Crash, Exit, Or Restart Read Application Data

Applicable Platforms

Languages: C++, Java, C#

View CWE Details

https://github.com/patriksimek/vm2/security/advisories/GHSA…

https://github.com/patriksimek/vm2/security/advisories/GHSA-2v2p-6j97-cjg9