Vulnerability Description
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.
CVSS Score
CRITICAL
Related Weaknesses (CWE)
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-polluti
- https://github.com/patriksimek/vm2/security/advisories/GHSA-3vgf-8m4q-q4qr
FAQ
What is CVE-2026-92953?
CVE-2026-92953 is a vulnerability with a CVSS score of 10.0 (CRITICAL). 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 Uint8Ar...
How severe is CVE-2026-92953?
CVE-2026-92953 has been rated CRITICAL with a CVSS base score of 10.0/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-92953?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.