CVE-2021-21297

HIGH

Node-Red <1.2.8 - Prototype Pollution

Title source: llm
STIX 2.1

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.

References (4)

Core 4
Core References
Various Sources x_refsource_misc
https://www.npmjs.com/package/%40node-red/runtime
Various Sources x_refsource_misc
https://www.npmjs.com/package/%40node-red/editor-api
Release Notes, Third Party Advisory x_refsource_misc
https://github.com/node-red/node-red/releases/tag/1.2.8

Scores

CVSS v3 7.7
EPSS 0.0140
EPSS Percentile 68.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N

Details

CWE
CWE-915 CWE-1321
Status published
Products (2)
node-red/runtime 0 - 1.2.8npm
nodered/node-red < 1.2.8
Published Feb 26, 2021
Tracked Since Feb 18, 2026