CVE-2020-8122: Nextcloud Server

Medium severity, CVSS 4.3. EPSS: 0.7% chance of exploitation in the next 30 days.

A missing check in Nextcloud Server 14.0.3 could give recipient the possibility to extend the expiration date of a share they received.

Affected products

• Nextcloud Nextcloud Server: before 12.0.13 (fixed in 12.0.13); from 13.0.0, before 13.0.8 (fixed in 13.0.8); from 14.0.0, before 14.0.4 (fixed in 14.0.4); from 14.0.5, before 15.0.0 (fixed in 15.0.0)

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