CVE-2020-27781: Fedoraproject Fedora

High severity, CVSS 7.1. EPSS: 0.3% chance of exploitation in the next 30 days.

User credentials can be manipulated and stolen by Native CephFS consumers of OpenStack Manila, resulting in potential privilege escalation. An Open Stack Manila user can request access to a share to an arbitrary cephx user, including existing users. The access key is retrieved via the interface drivers. Then, all users of the requesting OpenStack project can view the access key. This enables the attacker to target any resource that the user has access to. This can be done to even "admin" users, compromising the ceph administrator. This flaw affects Ceph versions prior to 14.2.16, 15.x prior to 15.2.8, and 16.x prior to 16.2.0.

Affected products

• Fedoraproject Fedora: version 33 only
• Red Hat Ceph: before 14.2.16 (fixed in 14.2.16); from 15.0.0, before 15.2.8 (fixed in 15.2.8); from 16.0.0, before 16.2.0 (fixed in 16.2.0)
• Red Hat Ceph Storage: version 2.0 only; version 3.0 only; version 4.0 only
• Red Hat Openshift Container Platform: version 4.0 only
• Red Hat Openstack Platform: version 13.0 only

Published 2020-12-18. Last modified 2026-06-17.