Red Hat Bugzilla

Red Hat Bugzilla (RHBZ) is a Red Hat bug-tracking system and is used to submit and review defects that have been found in Red Hat distributions and community projects.

Red Hat Bugzilla is licensed under the MPL-2.0 license. If a copy of the MPL was not distributed with this file, you can obtain one at

RHBZ combines the code from other Open Source projects with numerous customizations specifically for Red Hat.

Some of the Open Source projects included have other Open Source licenses, where these projects have been modified those modifications are licensed under the same license as the upstream project.

Bugs in this code base should be opened in Red Hat Bugzilla.

Commit history warning

RHBZ started as Red Hat-internal fork in 1998 and over the two decades that followed has undergone many changes. The commit history cannot be made public as commit messages and meta info contains confidential data.

The code itself can be made public but for the above reason it is merely a single commit on top of the upstream Bugzilla code. Red Hat retains an internal copy of the source with history, should you have any questions about why a change was made please contact a Red Hat Associate and they will review the history to see why a change was made.

Upstream Sources


RHBZ is a fork of Bugzilla, it provides the core code and extensions. There are numerous customizations to this code.

Mozilla Bugzilla

BMO is the Mozilla fork of Bugzilla, we cherry-pick extensions and patches.


AlertifyJS is a javascript framework for developing pretty browser dialogs and notifications.

RHBZ uses this for ajax message results and some editing features.


Bayoteers provides the BayotBase, AgileTools,and TreeViewPlus extensions.

RHBZ has made extensive changes to these.


DataTables is a plug-in for the jQuery Javascript library. It is a highly flexible tool, built upon the foundations of progressive enhancement, that adds all of these advanced features to any HTML table.

RHBZ uses this to display bug lists and other tables.

Font Awesome Free

Font Awesome Free is a font and icon toolkit based on CSS and LESS

RHBZ uses the open source version for various UI elements.


Plotly.js is a high-level, declarative charting library.

RHBZ uses this for displaying custom reports.


Selectize is the hybrid of a textbox and select box. It's jQuery based and it has autocomplete and native-feeling keyboard navigation; useful for tagging, contact lists, etc.

RHBZ uses this to replace most select boxes.