CVE-2021-21297— Prototype Pollution in Node-Red
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I. Basic Information for CVE-2021-21297
Vulnerability Information
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Vulnerability Title
Prototype Pollution in Node-Red
Source: NVD (National Vulnerability Database)
Vulnerability Description
Node-Red is a low-code programming for event-driven applications built using nodejs. Node-RED 1.2.7 and earlier contains a Prototype Pollution vulnerability in the admin API. A badly formed request can modify the prototype of the default JavaScript Object with the potential to affect the default behaviour of the Node-RED runtime. The vulnerability is patched in the 1.2.8 release. A workaround is to ensure only authorized users are able to access the editor url.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
CWE-1321
Source: NVD (National Vulnerability Database)
Vulnerability Title
Node-Red 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Node-Red是开源的一种基于流的可视化编程开发工具，用于将硬件设备，API和在线服务作为物联网的一部分连接在一起。 Node-Red 存在安全漏洞，该漏洞源于admin API包含一个Prototype Pollution漏洞。格式错误的请求可能会修改默认JavaScript对象的原型。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2021-21297
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- https://github.com/node-red/node-red/releases/tag/1.2.8x_refsource_MISC
- https://github.com/node-red/node-red/security/advisories/GHSA-xp9c-82x8-7f67x_refsource_CONFIRM
- https://www.npmjs.com/package/%40node-red/editor-apix_refsource_MISC
- https://www.npmjs.com/package/%40node-red/runtimex_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2021-21297
IV. Related Vulnerabilities
Same vendor: node-red
Same weakness: CWE-1321
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Evolver: Prototype Pollution via `Object.assign()` in mailbo - CVE-2026-42033
Axios: Prototype Pollution Gadgets - Response Tampering, Dat
V. Comments for CVE-2021-21297
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