CVE-2026-92934

Published: Sep 17, 2026Modified: Sep 17, 2026Deferred

9.5

Vector

CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XShow less

Source: disclosure@vulncheck.com (Secondary)

Description

vm2 before 3.11.8 contains an incomplete fix for Error.cause sanitization that allows sandbox escape when revisited host-wrapped AggregateError objects are caught within a single exception handler traversal. Attackers can exploit cycle detection bypass in handleException to access unsanitized host proxies embedded in the errors array, enabling full remote code execution and process information disclosure from the sandbox.

Related CWEs

CWE-693

Protection Mechanism Failure

The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product.

References (3)

https://github.com/patriksimek/vm2/security/advisories/GHSA-x965-fc75-jpqh

Source: disclosure@vulncheck.com

https://www.vulncheck.com/advisories/vm2-before-3.11.8-sandbox-escape-rce-via-aggregateerror

Source: disclosure@vulncheck.com

https://github.com/patriksimek/vm2/security/advisories/GHSA-x965-fc75-jpqh

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

No history available yet.