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CVE-2026-24120 is a critical sandbox escape vulnerability in vm2, the Node.js sandbox library, caused by an incomplete remediation for CVE-2023-37466. In vulnerable versions, the resetPromiseSpecies protection intended to sanitize Promise species handling can be bypassed from within the sandbox. Reported analysis indicates the mitigation relied on attacker-reachable primitives such as Object.defineProperty, allowing sandboxed code to neutralize the protection and then abuse Promise species behavior to obtain a host-realm exception object. From that host object, an attacker can traverse the constructor chain to reach the host Function constructor and break out of vm2’s isolation boundary. Successful exploitation results in arbitrary command execution on the underlying host system. The issue affects vm2 versions prior to 3.10.5 and is fixed in version 3.10.5.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
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No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
14 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vm2 sandbox escape CVE mentioned only as part of a historical list.
A prior vm2 vulnerability described as an insufficient fix for CVE-2023-37466, included in the security history.
Critical vm2 sandbox escape vulnerability in the resetPromiseSpecies function that can enable remote code execution on the host environment.
A critical vm2 sandbox escape vulnerability that bypasses Promise species protections to execute commands on the host.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.