This High severity DoS (Denial of Service) vulnerability was introduced in versions 6.1.0, 6.2.0, 6.3.0, 7.0.0, 7.1.0,
and 7.2.0 of Crowd Data Center.

This DoS (Denial of Service) vulnerability, with a CVSS Score of 8.7 and a CVSS Vector of
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N, allows an unauthenticated attacker to expose assets in
your environment susceptible to exploitation which has no impact to confidentiality, no impact to integrity, high impact
to availability, and requires no user interaction.

Atlassian recommends that Crowd Data Center customers upgrade to latest version, if you are unable to do so, upgrade
your instance to one of the specified supported fixed versions:

• 7.2: Upgrade to a release greater than or equal to 7.2.2

See the release notes (https://confluence.atlassian.com/crowd/crowd-release-notes-199094.html). You can download the
latest version of Crowd Data Center from the download center
(https://www.atlassian.com/software/crowd/download-archive).

The National Vulnerability Database provides the following description for this vulnerability:

uri-js through 4.4.1 contains a denial of service vulnerability in the removeDotSegments function that loops infinitely when a path segment begins with Unicode line or paragraph separators. Attackers can trigger this by calling removeDotSegments directly or through normalize/resolve functions with IRI handling enabled, causing the Node.js event loop to block indefinitely until heap exhaustion.