### [CVE-2018-5136](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-5136)
![](https://img.shields.io/static/v1?label=Product&message=Firefox&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=%3C%2059%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Same-origin%20policy%20violation%20with%20data%3A%20URL%20shared%20workers&color=brighgreen)

### Description

A shared worker created from a "data:" URL in one tab can be shared by another tab with a different origin, bypassing the same-origin policy. This vulnerability affects Firefox < 59.

### POC

#### Reference
- https://bugzilla.mozilla.org/show_bug.cgi?id=1419166

#### Github
No PoCs found on GitHub currently.