CVE-2021-29659: ownCloud Server

Medium severity, CVSS 6.5. EPSS: 1.3% chance of exploitation in the next 30 days.

ownCloud 10.7 has an incorrect access control vulnerability, leading to remote information disclosure. Due to a bug in the related API endpoint, the attacker can enumerate all users in a single request by entering three whitespaces. Secondary, the retrieval of all users on a large instance could cause higher than average load on the instance.

Affected products

• ownCloud ownCloud Server: version 10.7.0 only

Published 2021-05-20. Last modified 2026-06-17.