Upstream information
Description
Ceph is an open-source distributed storage platform providing object, block, and file storage. In versions prior to 20.2.4 and 19.2.6, the Ceph Object Gateway (RGW) SigV4 handler does not reject requests that carry x-amz-* headers absent from the signed header set, allowing anyone holding a presigned URL to attach arbitrary unsigned x-amz-* headers that RGW will honor. AWS S3 requires every x-amz-* header on a SigV4 request to be signed and rejects requests bearing additional unsigned headers, but RGW validates only the headers listed in X-Amz-SignedHeaders and ignores any extra ones, so they take effect without being covered by the signature. By adding such headers to a presigned PUT URL, an attacker can grant themselves more capabilities than the URL's signer intended and escalate their privileges. This issue is fixed in versions 20.2.4 and 19.2.6.SUSE information
Overall state of this security issue: Pending
This issue is currently rated as having important severity.
| CVSS detail | CNA (GitHub) | SUSE |
|---|---|---|
| Base Score | 8.1 | 8.2 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N |
| Attack Vector | Network | Network |
| Attack Complexity | Low | High |
| Privileges Required | Low | Low |
| User Interaction | None | None |
| Scope | Unchanged | Changed |
| Confidentiality Impact | High | High |
| Integrity Impact | High | High |
| Availability Impact | None | None |
| CVSSv3 Version | 3.1 | 3.1 |
Status of this issue by product and package
Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.
| Product(s) | Source package | State |
|---|---|---|
| Products under general support and receiving all security fixes. | ||
| SUSE Linux Enterprise Desktop 15 SP7 | ceph | Affected |
| SUSE Linux Enterprise Micro 5.3 | ceph | Affected |
| SUSE Linux Enterprise Micro 5.4 | ceph | Affected |
| SUSE Linux Enterprise Micro 5.5 | ceph | Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP7 | ceph | Affected |
| SUSE Linux Enterprise Module for Legacy 15 SP7 | ceph | Affected |
| SUSE Linux Enterprise Module for Package Hub 15 SP7 | ceph | Affected |
| SUSE Linux Enterprise Server 15 SP7 | ceph | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | ceph | Affected |
| SUSE Linux Micro 6.0 | ceph | Affected |
| SUSE Linux Micro 6.1 | ceph | Affected |
| Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
| SUSE Linux Enterprise High Performance Computing 12 SP5 | ceph | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | ceph | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5 | ceph | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | ceph | Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP4 | ceph | Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP5 | ceph | Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP6 | ceph | Affected |
| SUSE Linux Enterprise Module for Legacy 15 SP6 | ceph | Affected |
| SUSE Linux Enterprise Server 12 SP5 | ceph | Affected |
| SUSE Linux Enterprise Server 12 SP5-LTSS | ceph | Affected |
| SUSE Linux Enterprise Server 15 SP4 | ceph | Affected |
| SUSE Linux Enterprise Server 15 SP4-LTSS | ceph | Affected |
| SUSE Linux Enterprise Server 15 SP5 | ceph | Affected |
| SUSE Linux Enterprise Server 15 SP5-LTSS | ceph | Affected |
| SUSE Linux Enterprise Server 15 SP6 | ceph | Affected |
| SUSE Linux Enterprise Server 15 SP6-LTSS | ceph | Affected |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | ceph | Affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP5 | ceph | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | ceph | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | ceph | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | ceph | Affected |
| Products past their end of life and not receiving proactive updates anymore. | ||
| HPE Helion OpenStack 8 | ceph | Affected |
| SUSE CaaS Platform 3.0 | ceph | Affected |
| SUSE CaaS Platform 4.0 | ceph | Affected |
| SUSE Enterprise Storage 5 | ceph | Affected |
| SUSE Enterprise Storage 6 | ceph | Affected |
| SUSE Enterprise Storage 7 | ceph | Affected |
| SUSE Enterprise Storage 7.1 | ceph | Affected |
| SUSE Linux Enterprise Desktop 12 SP3 | ceph | Affected |
| SUSE Linux Enterprise Desktop 12 SP4 | ceph | Affected |
| SUSE Linux Enterprise Desktop 15 SP1 | ceph | Affected |
| SUSE Linux Enterprise Desktop 15 SP2 | ceph | Affected |
| SUSE Linux Enterprise Desktop 15 SP3 | ceph | Affected |
| SUSE Linux Enterprise Desktop 15 SP4 | ceph | Affected |
| SUSE Linux Enterprise Desktop 15 SP5 | ceph | Affected |
| SUSE Linux Enterprise Desktop 15 SP6 | ceph | Affected |
| SUSE Linux Enterprise High Performance Computing 12 SP3 | ceph | Affected |
| SUSE Linux Enterprise High Performance Computing 12 SP4 | ceph | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1 | ceph | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS | ceph | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS | ceph | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2 | ceph | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS | ceph | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | ceph | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3 | ceph | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS | ceph | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | ceph | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4 | ceph | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | ceph | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | ceph | Affected |
| SUSE Linux Enterprise Micro 5.0 | ceph | Affected |
| SUSE Linux Enterprise Micro 5.1 | ceph | Affected |
| SUSE Linux Enterprise Micro 5.2 | ceph | Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP1 | ceph | Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP2 | ceph | Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP3 | ceph | Affected |
| SUSE Linux Enterprise Module for Package Hub 15 SP5 | ceph | Affected |
| SUSE Linux Enterprise Module for Package Hub 15 SP6 | ceph | Affected |
| SUSE Linux Enterprise Real Time 15 SP2 | ceph | Affected |
| SUSE Linux Enterprise Real Time 15 SP3 | ceph | Affected |
| SUSE Linux Enterprise Real Time 15 SP4 | ceph | Affected |
| SUSE Linux Enterprise Server 12 SP3 | ceph | Affected |
| SUSE Linux Enterprise Server 12 SP3-BCL | ceph | Affected |
| SUSE Linux Enterprise Server 12 SP3-ESPOS | ceph | Affected |
| SUSE Linux Enterprise Server 12 SP3-LTSS | ceph | Affected |
| SUSE Linux Enterprise Server 12 SP4 | ceph | Affected |
| SUSE Linux Enterprise Server 12 SP4-ESPOS | ceph | Affected |
| SUSE Linux Enterprise Server 12 SP4-LTSS | ceph | Affected |
| SUSE Linux Enterprise Server 15 SP1 | ceph | Affected |
| SUSE Linux Enterprise Server 15 SP1-BCL | ceph | Affected |
| SUSE Linux Enterprise Server 15 SP1-LTSS | ceph | Affected |
| SUSE Linux Enterprise Server 15 SP2 | ceph | Affected |
| SUSE Linux Enterprise Server 15 SP2-BCL | ceph | Affected |
| SUSE Linux Enterprise Server 15 SP2-LTSS | ceph | Affected |
| SUSE Linux Enterprise Server 15 SP3 | ceph | Affected |
| SUSE Linux Enterprise Server 15 SP3-BCL | ceph | Affected |
| SUSE Linux Enterprise Server 15 SP3-LTSS | ceph | Affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP3 | ceph | Affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP4 | ceph | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP1 | ceph | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP2 | ceph | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP3 | ceph | Affected |
| SUSE Linux Enterprise Software Development Kit 12 SP3 | ceph | Affected |
| SUSE Linux Enterprise Software Development Kit 12 SP4 | ceph | Affected |
| SUSE Linux Enterprise Software Development Kit 12 SP5 | ceph | Affected |
| SUSE Manager Proxy 4.0 | ceph | Affected |
| SUSE Manager Proxy 4.1 | ceph | Affected |
| SUSE Manager Proxy 4.2 | ceph | Affected |
| SUSE Manager Proxy 4.3 | ceph | Affected |
| SUSE Manager Proxy LTS 4.3 | ceph | Affected |
| SUSE Manager Retail Branch Server 4.0 | ceph | Affected |
| SUSE Manager Retail Branch Server 4.1 | ceph | Affected |
| SUSE Manager Retail Branch Server 4.2 | ceph | Affected |
| SUSE Manager Retail Branch Server 4.3 | ceph | Affected |
| SUSE Manager Retail Branch Server LTS 4.3 | ceph | Affected |
| SUSE Manager Server 4.0 | ceph | Affected |
| SUSE Manager Server 4.1 | ceph | Affected |
| SUSE Manager Server 4.2 | ceph | Affected |
| SUSE Manager Server 4.3 | ceph | Affected |
| SUSE Manager Server LTS 4.3 | ceph | Affected |
| SUSE OpenStack Cloud 8 | ceph | Affected |
| SUSE OpenStack Cloud 9 | ceph | Affected |
| SUSE OpenStack Cloud Crowbar 8 | ceph | Affected |
| SUSE OpenStack Cloud Crowbar 9 | ceph | Affected |
| openSUSE Leap 15.3 | ceph | Affected |
| openSUSE Leap 15.4 | ceph | Affected |
| openSUSE Leap 15.5 | ceph | Affected |
| openSUSE Leap 15.6 | ceph | Affected |
| openSUSE Leap Micro 5.2 | ceph | Affected |
| openSUSE Leap Micro 5.3 | ceph | Affected |
| openSUSE Leap Micro 5.4 | ceph | Affected |
| openSUSE Leap Micro 5.5 | ceph | Affected |
SUSE Timeline for this CVE
CVE page created: Thu Aug 20 21:11:39 2026CVE page last modified: Tue Sep 1 11:40:26 2026