What’s Vulnerable › Vulnerabilities

CVE-2026-92961: vm2 before 3.11.6 Memory Exhaustion DoS via bufferAllocLimit Bypass

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-17 · updated 2026-09-21
• Weakness: CWE-770

Description

vm2 before 3.11.6 fails to enforce bufferAllocLimit on ArrayBuffer, SharedArrayBuffer, and TypedArray constructors, allowing attackers to allocate arbitrary host memory. Attackers can bypass the buffer allocation cap by using these V8 intrinsics to exhaust host process memory and trigger out-of-memory conditions.

Affected products

• patriksimek vm2: before 3.11.6 — fixed in 3.11.6

How to fix

Upgrade to a fixed version: patriksimek vm2 3.11.6. Check the vendor advisory for mitigations.

References

• https://github.com/patriksimek/vm2/security/advisories/GHSA-v836-6xw4-9cx3
• https://www.vulncheck.com/advisories/vm2-before-3.11.6-memory-exhaustion-dos-via-bufferalloclimit-bypass

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