# CVE-2014-4671: hapijs hapi Rosetta-Flash JSONP vulnerability

Source: https://junglewise.ai/threats/cve-2014-4671-hapijs-hapi-rosetta-flash-jsonp-vulnerability  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2020-08-31. Updated: 2026-05-14  
License: CC BY 4.0 with a link back

CVE-2014-4671 · Severity: info · CVSS 4.3 · Published 2020-08-31

hapi is a popular web framework for Node.js used to build applications and services. A vulnerability known as 'Rosetta-Flash' allows an attacker to bypass security restrictions that normally prevent websites from talking to each other. This could allow a malicious site to steal sensitive data from a user's session on a different domain if that domain uses hapi to serve certain types of data (JSONP).

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

## Quick answers

**Is CVE-2014-4671 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2014-4671 being exploited in the wild.

**How severe is CVE-2014-4671?** Informational severity, with a CVSS score of 4.3, published 31 August 2020.

**Which products and versions are affected?** hapi (npm) SEMVER:introduced=0,fixed=6.1.0.

**Is there a fix for CVE-2014-4671?** Yes. hapi (npm): upgrade to 6.1.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2014-4671 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2014-4671?** Check whether you run 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

- hapi (npm): upgrade to 6.1.0 or later

  ```sh
  npm install hapi@6.1.0
  ```


## Technical details

The hapi framework versions 6.1.0 and earlier are vulnerable to the Rosetta-Flash attack (CVE-2014-4671). This vulnerability occurs because JSONP endpoints do not sufficiently validate or prefix the callback parameter, allowing an attacker to craft a callback that is interpreted as a valid, malicious SWF (Flash) file. By forcing a victim's browser to load this 'Flash' file from the vulnerable domain, an attacker can bypass the Same-Origin Policy (SOP) and perform Cross-Site Request Forgery (CSRF) to exfiltrate sensitive data. The fix involves prepending JSONP responses with an empty comment '/**/' to break the Flash parser and setting 'X-Content-Type-Options: nosniff'.

## Affected products

- hapijs hapi <= 6.1.0

## Identifiers

- CVE-2014-4671
- GHSA-363h-vj6q-3cmj

## Timeline

- 2014-07-08: disclosed: Vulnerability details and Rosetta-Flash technique published
- 2014-07-14: patched: Fix merged into hapi master branch
- 2020-08-31: advisory: GitHub Advisory published

## References

- [https://github.com/spumko/hapi/pull/1766](https://github.com/spumko/hapi/pull/1766)
- [https://github.com/hapijs/hapi/commit/d47f57abf23bdaa84f61aed2bac94ae5f358afb7](https://github.com/hapijs/hapi/commit/d47f57abf23bdaa84f61aed2bac94ae5f358afb7)
- [https://github.com/patrickkettner](https://github.com/patrickkettner)
- [https://github.com/spumko/hapi](https://github.com/spumko/hapi)
- [https://www.npmjs.com/advisories/12](https://www.npmjs.com/advisories/12)
- [http://helpx.adobe.com/security/products/flash-player/apsb14-17.html](http://helpx.adobe.com/security/products/flash-player/apsb14-17.html)

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