# @commercial/hapi CORS denial of service

Source: https://junglewise.ai/threats/commercial-hapi-cors-denial-of-service-88546778  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2020-09-03. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

Severity: info · CVSS 7.5 · Published 2020-09-03

@commercial/hapi is a JavaScript library for building web applications. A vulnerability in its CORS (Cross-Origin Resource Sharing) request handler allows attackers to crash the application by sending requests with malformed headers, causing an unhandled exception that terminates the service.

Vendors: [npm](https://junglewise.ai/threats/vendors/npm).

## Quick answers

**Is This vulnerability exploited in the wild?** No. Junglewise Threat Intelligence has no report of This vulnerability being exploited in the wild.

**How severe is This vulnerability?** Informational severity, with a CVSS score of 7.5, published 3 September 2020.

**Which products and versions are affected?** @commercial/hapi (npm) SEMVER:introduced=0,fixed=16.8.2.

**Is there a fix for This vulnerability?** Yes. @commercial/hapi (npm): upgrade to 16.8.2 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is This vulnerability attacked?** It is attacked over the network.

**Am I affected?** Check whether you run @commercial/hapi (npm) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- @commercial/hapi (npm): upgrade to 16.8.2 or later

  ```sh
  npm install @commercial/hapi@16.8.2
  ```


## Technical details

The vulnerability exists in the CORS request handler of @commercial/hapi, which fails to properly validate header values. When the handler receives requests with certain invalid header values, it throws an unhandled system error. If the application lacks a global exception handler, this causes the entire process to exit, resulting in denial of service. The vulnerability affects multiple version ranges (pre-16.8.2, 17.0.0–17.9.1, 18.0.0–18.4.0, and 19.0.0–19.1.0) and is fixed in versions 16.8.2, 17.9.2, 18.4.1, and 19.1.1 or later.

## Affected products

- @commercial hapi <16.8.2, 17.0.0–17.9.1, 18.0.0–18.4.0, 19.0.0–19.1.0

## Timeline

- 2020-09-03: disclosed

## References

- [https://www.npmjs.com/advisories/1483](https://www.npmjs.com/advisories/1483)