patriksimek vm2 up to 3.11.5 Sandbox lib/bridge.js Function.prototype.call privileges management

CVSS Meta Temp Score
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CTI Interest Score
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8.4$0-$5k0.41+

Summaryinfo

A vulnerability was found in patriksimek vm2 up to 3.11.5. It has been classified as critical. Affected is the function Function.prototype.call of the file lib/bridge.js of the component Sandbox. The manipulation leads to privileges management. This vulnerability is referenced as CVE-2026-47698. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in patriksimek vm2 up to 3.11.5. It has been rated as critical. This issue affects the function Function.prototype.call of the file lib/bridge.js of the component Sandbox. The manipulation with an unknown input leads to a privileges management vulnerability. Using CWE to declare the problem leads to CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.6, lib/bridge.js and lib/setup-sandbox.js fail to block stacked indirection through Function.prototype.call around dangerous host prototype getter and setter mutators, allowing sandbox code to sever a host intrinsic's prototype chain and reach e.constructor.constructor for arbitrary host command execution. This issue is fixed in version 3.11.6.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2026-47698 since 05/19/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

Upgrading to version 3.11.6 eliminates this vulnerability.

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Productinfo

Vendor

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 9.8
CNA Vector (GitHub_M): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Privileges management
CWE: CWE-269 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: vm2 3.11.6

Timelineinfo

05/19/2026 CVE reserved
08/17/2026 +90 days Advisory disclosed
08/17/2026 +0 days VulDB entry created
08/17/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2026-47698 (🔒)
GCVE (CVE): GCVE-0-2026-47698
GCVE (VulDB): GCVE-100-391445

Entryinfo

Created: 08/17/2026 23:16
Changes: 08/17/2026 23:16 (66)
Complete: 🔍
Cache ID: 216::103

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