CVE-2024-52508: Nextcloud Mail

High severity, CVSS 8.1. EPSS: 0.7% chance of exploitation in the next 30 days.

Nextcloud Mail is the mail app for Nextcloud, a self-hosted productivity platform. When a user is trying to set up a mail account with an email address like user@example.tld that does not support auto configuration, and an attacker managed to register autoconfig.tld, the used email details would be send to the server of the attacker. It is recommended that the Nextcloud Mail app is upgraded to 1.14.6, 1.15.4, 2.2.11, 3.6.3, 3.7.7 or 4.0.0.

Affected products

• Nextcloud Mail: from 1.9.0, before 1.14.6 (fixed in 1.14.6); from 1.15.0, before 1.15.4 (fixed in 1.15.4); from 2.1.0, before 2.2.11 (fixed in 2.2.11); from 3.1.0, before 3.6.3 (fixed in 3.6.3); from 3.7.0, before 3.7.7 (fixed in 3.7.7)

Published 2024-11-15. Last modified 2026-06-17.