CVE-2021-21297

    Dashboard / Vulnerabilities / CVE-2021-21297

    CVE-2021-21297

    Published: 26 Feb 2021Last Modified: 9 Jul 2026

    Summary:

    Details: 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: https://www.npmjs.com/package/%40node-red/editor-api, https://www.npmjs.com/package/%40node-red/runtime, https://github.com/node-red/node-red/releases/tag/1.2.8, https://github.com/node-red/node-red/security/advisories/GHSA-xp9c-82x8-7f67

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -23f0cd3a2610c68688ea1f04fd61e9b8f6982166

    Affected versions

    1.2.7
    1.2.6
    1.2.5
    1.2.4
    1.2.3
    1.2.0
    1.2.2
    1.2.1
    1.2.0-beta.1

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2021-21297 | CVE-DB