CVE-2026-92949 (GCVE-0-2026-92949)
Vulnerability from cvelistv5
Published
2026-09-17 13:46
Modified
2026-09-21 17:14
Severity ?
6.3 (Medium) - CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N
4.0 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N
CWE
  • CWE-471 - Modification of Assumed-Immutable Data (MAID)
Summary
vm2 versions from 3.9.6 before 3.11.7 fail to properly restrict access to accessor properties on frozen objects, allowing sandboxed scripts to bypass vm.freeze() and vm.readonly() protections. Attackers can use Object.getOwnPropertyDescriptor() or __lookupSetter__() to extract and invoke host object setters directly, mutating properties the embedder explicitly marked read-only.
References
Impacted products
Vendor Product Version
patriksimek vm2 Version: 3.9.6   ≤
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