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CVE Record

CVE-2019-10761: Sandbox Bypass

This affects the package vm2 before 3.6.11. It is possible to trigger a RangeError exception from the host rather than the "sandboxed" context by reaching the stack call limit with an infinite recursion. The returned object is then used to reference the mainModule property of the host code running the script allowing it to spawn a child_process and execute arbitrary code.

HighCVSS 8.3Not KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2019-10761 is a vm2 sandbox bypass. Applications using vulnerable vm2 versions to run untrusted JavaScript could lose the isolation they rely on, allowing code intended to be contained to affect the host Node.js process.

Executive priority

Prioritize remediation where vm2 processes external or tenant-supplied code. The business risk is escape from an isolation control, potentially turning a scripting feature into host-level compromise.

Technical view

vm2 before 3.6.11 can mishandle a host-thrown RangeError triggered through stack exhaustion. The resulting object can expose host context properties, including mainModule, enabling arbitrary code execution from outside the intended sandbox boundary.

Likely exposure

Exposure is most likely in Node.js applications that depend on vm2 before 3.6.11 and execute user-controlled, tenant-controlled, plugin, workflow, or automation scripts inside vm2.

Exploitation context

The provided CVSS vector rates network attack, low complexity, no privileges, and no user interaction. KEV is false, and the provided sources do not establish active exploitation in the wild.

Researcher notes

The evidence names vm2 before 3.6.11, a GitHub issue, and a fixing commit. No CWE is supplied. Treat active exploitation as unproven from this bundle despite proof-of-concept exploitability in the CVSS temporal vector.

Mitigation direction

  • Upgrade vm2 to version 3.6.11 or later where supported.
  • Check vendor advisories for any newer guidance before redeploying.
  • Disable or restrict untrusted script execution until patched.
  • Reduce sandbox privileges and host integrations where operationally possible.

Validation and detection

  • Inventory package manifests and lockfiles for vm2 versions below 3.6.11.
  • Confirm deployed artifacts match the remediated dependency version.
  • Identify routes, jobs, or services that pass untrusted code into vm2.
  • Review logs for unexpected sandbox errors or child process activity.
Prepared
Confidence
high
Sources
5

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2019-10761 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
High
CVSS
8.3 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L/E:P/RL:O/RC:C

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
4Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
8.3CVSS 3.1HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L/E:P/RL:O/RC:C3.93.7Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

8.3High
CVSS 3.1 vector shape for CVE-2019-10761Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L/E:P/RL:O/RC:C

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/avm2unspecifiedListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.