CVE-2019-20902: Atlassian Crowd

High severity, CVSS 7.5. EPSS: 0.9% chance of exploitation in the next 30 days.

Upgrading Crowd via XML Data Transfer can reactivate a disabled user from OpenLDAP. The affected versions are from before version 3.4.6 and from 3.5.0 before 3.5.1.

Affected products

• Atlassian Crowd: before 3.4.6 (fixed in 3.4.6); from 3.5.0, before 3.5.1 (fixed in 3.5.1)

Published 2020-10-01. Last modified 2026-06-17.