Access-revoked user can add new users and groups to a Jira project - CVE-2021-41311

Affected versions of Atlassian Jira Server and Data Center allow attackers with access to an administrator account that has had its access revoked to modify projects' Users & Roles settings, via a Broken Authentication vulnerability in the /plugins/servlet/project-config/PROJECT/roles endpoint.

The affected versions are before version 8.19.1.

Affected versions:

• version < 8.19.1

Fixed versions:

• 8.19.1