CVE-2024-47866 HIGH

CVE-2024-47866: RGW DoS attack with empty HTTP header in S3 object copy

Vendor Ceph
Product ceph
Weakness CWE-20 · Input validation
Published November 12, 2025
Last update December 11, 2025

CVSS base score

7.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

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

What the vulnerability does

01Description

Ceph is a distributed object, block, and file storage platform. In versions up to and including 19.2.3, using the argument `x-amz-copy-source` to put an object and specifying an empty string as its content leads to the RGW daemon crashing, resulting in a DoS attack. As of time of publication, no known patched versions exist.

Key dates

02Disclosure timeline

November 12, 2025 CVE published
December 11, 2025 Record updated