CVE-2026-92953

Summary

vm2 versions from 3.11.0 before 3.11.8 fail to protect host TypedArray and ArrayBuffer prototypes from sandbox mutation. Attackers can use prototype-walking primitives to reach and modify host Uint8Array.prototype, %TypedArray%.prototype, and ArrayBuffer.prototype, causing host-created typed arrays to observe attacker-controlled properties after VM.run() returns.

Affected Software

Weaknesses

• CWE-913: Improper Control of Dynamically-Managed Code Resources

References

• https://github.com/patriksimek/vm2/security/advisories/GHSA-3vgf-8m4q-q4qr
• https://www.vulncheck.com/advisories/vm2-3.11.0-through-3.11.7-prototype-pollution-via-typedarray

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