CVE-2025-30156: Ceph: AES-CBC misuse in CephX and RADOSGW enables authentication bypass and credential forgery

Overview

Severity

High (CVSS 8.9)

CVSS Vector

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L

Exploit Status

Not Exploited

Patch Tuesday

2026-Aug

Released

2026-08-29

EPSS Score

0.09% (percentile: 0.6%)

Affected Products (1)

Other

• 20730-17084

Revision History

• 2026-08-29: Information published.