High severity7.7NVD Advisory· Published Feb 26, 2021· Updated Jun 17, 2026
CVE-2021-21297
CVE-2021-21297
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
@node-red/runtimenpm | < 1.2.8 | 1.2.8 |
Affected products
3Patches
Vulnerability mechanics
References
8- github.com/advisories/GHSA-xp9c-82x8-7f67ghsaADVISORY
- github.com/node-red/node-red/releases/tag/1.2.8nvdRelease NotesThird Party AdvisoryWEB
- github.com/node-red/node-red/security/advisories/GHSA-xp9c-82x8-7f67nvdThird Party AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2021-21297ghsaADVISORY
- www.npmjs.com/package/@node-red/editor-apighsaWEB
- www.npmjs.com/package/@node-red/runtimeghsaWEB
- www.npmjs.com/package/%40node-red/editor-apinvd
- www.npmjs.com/package/%40node-red/runtimenvd
News mentions
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