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CVE

CVE-2026-44005

vm2: Sandbox escape
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CVE

CVE-2026-44005

vm2: Sandbox escape

vm2 is an open source vm/sandbox for Node.js. From 3.9.6 to 3.10.5, vm2's bridge exposes mutable proxies for real host-realm intrinsic prototypes and then forwards sandbox writes into the underlying host objects with otherReflectSet() and otherReflectDefineProperty(), which lets attacker-controlled JavaScript running in a default VM or inherited NodeVM mutate shared host Object.prototype, Array.prototype, and Function.prototype from inside the sandbox This vulnerability is fixed in 3.11.0.

Package Versions Affected

Package Version
patch Availability
eslint-plugin-n
Available
Available by request
eslint-plugin-n
Available
Available by request
eslint-plugin-n
Available
Available by request
eslint-plugin-n
Available
Available by request
eslint-plugin-n
Available
Available by request
eslint-plugin-n
Available
Available by request

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
10
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H
C
H
U
-

Related Resources

No items found.

References

https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44005.json, https://access.redhat.com/errata/RHSA-2026:50850, https://access.redhat.com/security/cve/CVE-2026-44005, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44005.json, https://github.com/patriksimek/vm2/security/advisories/GHSA-vwrp-x96c-mhwq, https://nvd.nist.gov/vuln/detail/CVE-2026-44005, https://bugzilla.redhat.com/show_bug.cgi?id=2477205

Severity

10

CVSS Score
0
10

Basic Information

Base CVSS
10
EPSS Probability
0.00831%
EPSS Percentile
0.55884%
Introduced Version
532120d5cdec7da8225fc6242e154ebabc63fe4d
Fix Available
fca270df73b64a88e2f9ce71ac17663b6eaf814e

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