CVE-2019-15620: Nextcloud Talk

Low severity, CVSS 2.7. EPSS: 0.8% chance of exploitation in the next 30 days.

Improper access control in Nextcloud Talk 6.0.3 leaks the existance and the name of private conversations when linked them to another shared item via the projects feature.

Affected products

• Nextcloud Talk: before 6.0.4 (fixed in 6.0.4)

Published 2020-02-04. Last modified 2026-06-17.