CVE-2026-92944: critical vulnerability in patriksimek vm2
vm2 3.10.2 through 3.11.6 Sandbox Escape via Promise Protector
Published · Updated
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28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.3epss 0.8%
vm2 versions 3.10.2 through 3.11.6 contain a sandbox escape vulnerability on Node.js 26 where Promise.prototype.finally() bypasses vm2's wrapper protections due to a stale PromiseThenLookupChain protector in V8 14.6. Attackers can exploit this by creating an async function that returns a Promise with an attacker-controlled constructor Symbol.species, allowing them to reach the host Function constructor and process object for arbitrary code execution.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
patriksimek · vm2Related CVEs — patriksimek vm2
In the same product, most dangerous first.
CVE-2023-30547CRITICALSandbox Escape in vm2EPSS 73.0%CVE-2023-29017CRITICALvm2 Sandbox Escape vulnerabilityEPSS 63.2%CVE-2022-36067CRITICALvm2 vulnerable to Sandbox Escape before v3.9.11EPSS 47.9%CVE-2023-32314CRITICALSandbox EscapeEPSS 8.1%CVE-2023-37903CRITICALSandbox Escape in vm2EPSS 4.2%CVE-2023-37466CRITICALvm2 Sandbox Escape vulnerabilityEPSS 3.9%
References
https://github.com/patriksimek/vm2/commit/4635ddd85839461c8ad791990023a477efefe7bdhttps://github.com/patriksimek/vm2/commit/7b26e81087ec88c287d9a4812f969d412f32774ehttps://github.com/patriksimek/vm2/security/advisories/GHSA-27g9-p43v-cw3vhttps://www.vulncheck.com/advisories/vm2-3.10.2-through-3.11.6-sandbox-escape-via-promise-protector