CVE-2023-30581

nodejs: mainModule.proto bypass experimental policy mechanism

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Attend

*SSVC

Descriptions

The use of __proto__ in process.mainModule.__proto__.require() can bypass the policy mechanism and require modules outside of the policy.json definition. This vulnerability affects all users using the experimental policy mechanism in all active release lines: v16, v18 and, v20. Please note that at the time this CVE was issued, the policy is an experimental feature of Node.js

El uso de __proto__ en process.mainModule.__proto__.require() puede omitir el mecanismo de políticas y requerir módulos fuera de la definición de policy.json. Esta vulnerabilidad afecta a todos los usuarios que utilizan el mecanismo de política experimental en todas las líneas de lanzamiento activas: v16, v18 y v20. Tenga en cuenta que en el momento en que se emitió este CVE, la política era una característica experimental de Node.js.

A vulnerability has been discovered in Node.js, where the use of proto in process.mainModule.proto.require() can bypass the policy mechanism and require modules outside of the policy.json definition.

This update for nodejs12 fixes the following issues. Fixed permissions policies bypass via process.mainModule. Fixed permissions policies bypass via Module._load. Fixed permissions policies impersonation using module.constructor.createRequire. Fixed permissions policies bypass via process.binding. Fixed mainModule.proto bypass. Fixed missing DiffieHellman key generation. Fixed HTTP Request Smuggling via Empty headers separated by CR.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

Complete

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:Attend

Exploitation

None

Automatable

Yes

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2023-04-13 CVE Reserved
2023-07-31 CVE Published
2025-06-05 CVE Updated
2025-07-06 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-862: Missing Authorization

CAPEC

References (3)

URL	Tag	Source
https://nodejs.org/en/blog/vulnerability/june-2023-security-releases	Release Notes

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://access.redhat.com/security/cve/CVE-2023-30581	2023-10-09
https://bugzilla.redhat.com/show_bug.cgi?id=2219824	2023-10-09

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Nodejs Search vendor "Nodejs"		Node.js Search vendor "Nodejs" for product "Node.js"				>= 16.0.0 < 16.20.1 Search vendor "Nodejs" for product "Node.js" and version " >= 16.0.0 < 16.20.1"		-		Affected
Nodejs Search vendor "Nodejs"		Node.js Search vendor "Nodejs" for product "Node.js"				>= 18.0.0 < 18.16.1 Search vendor "Nodejs" for product "Node.js" and version " >= 18.0.0 < 18.16.1"		-		Affected
Nodejs Search vendor "Nodejs"		Node.js Search vendor "Nodejs" for product "Node.js"				>= 20.0.0 < 20.3.1 Search vendor "Nodejs" for product "Node.js" and version " >= 20.0.0 < 20.3.1"		-		Affected