Upstream information
Description
The 'podman quadlet install --replace' command opens the existing destination file with O_CREATE|O_WRONLY but omits O_TRUNC. When the initial reflink copy attempt fails (common on non-reflink-capable filesystems including many RHEL default XFS configurations), the fallback in ReflinkOrCopy uses io.Copy which performs a non-truncating write. If the original Quadlet is larger than the new Quadlet, the file is not truncated and content from the original is preserved. The command completes with no warning.There is no risk of information leakage as the user already had access to the Quadlet in order to replace it, and in most cases, this would only lead to invalid Quadlet files. However, security-related options from the end of the old Quadlet could be included in the new Quadlet, and if the truncation resulted in a valid Quadlet file, this could result in undesirable behavior. For example, running podman quadlet install --replace to remove a single line from the end of a Quadlet - including security-sensitive content, like AddCapability - will fail, and the option will continue to be used. Further, with Volume Quadlets, this can include additional mounts which can cause content to be unintentionally exposed into containers. If, later, the image is updated then compromised content might be leaked to an attacker.
The vulnerable code paths are in pkg/domain/infra/abi/quadlet.go (lines 338-360, O_CREATE|O_WRONLY without O_TRUNC) and vendor/go.podman.io/storage/pkg/fileutils/reflink_linux.go (lines 12-19, non-truncating io.Copy fallback).
SUSE information
Overall state of this security issue: Pending
This issue is currently rated as having moderate severity.
| CVSS detail | CNA (Red Hat) | SUSE |
|---|---|---|
| Base Score | 4.2 | 4.2 |
| Vector | CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L | CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L |
| Attack Vector | Local | Local |
| Attack Complexity | High | High |
| Privileges Required | Low | Low |
| User Interaction | Required | Required |
| Scope | Unchanged | Unchanged |
| Confidentiality Impact | Low | Low |
| Integrity Impact | Low | Low |
| Availability Impact | Low | Low |
| 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Please note that this evaluation state might be work in progress, incomplete or outdated.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 High Performance Computing 15 SP7 | podman | Not affected |
| SUSE Linux Enterprise Micro 5.3 | podman | Not affected |
| SUSE Linux Enterprise Micro 5.4 | podman | Not affected |
| SUSE Linux Enterprise Micro 5.5 | podman | Not affected |
| SUSE Linux Enterprise Module for Containers 15 SP7 | podman | Not affected |
| SUSE Linux Enterprise Server 15 SP7 | podman | Not affected |
| SUSE Linux Enterprise Server 16.0 | podman | Not affected |
| SUSE Linux Enterprise Server 16.1 | podman | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | podman | Not affected |
| SUSE Linux Enterprise Server for SAP applications 16.0 | podman | Not affected |
| SUSE Linux Enterprise Server for SAP applications 16.1 | podman | Affected |
| SUSE Linux Micro 6.0 | podman | Not affected |
| SUSE Linux Micro 6.1 | podman | Not affected |
| SUSE Linux Micro 6.2 | podman | Not affected |
| openSUSE Leap 16.0 | podman | Not affected |
| Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | podman | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5 | podman | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | podman | Not affected |
| SUSE Linux Enterprise Module for Containers 15 SP4 | podman | Not affected |
| SUSE Linux Enterprise Module for Containers 15 SP5 | podman | Not affected |
| SUSE Linux Enterprise Module for Containers 15 SP6 | podman | Not affected |
| SUSE Linux Enterprise Server 15 SP4 | podman | Not affected |
| SUSE Linux Enterprise Server 15 SP4-LTSS | podman | Not affected |
| SUSE Linux Enterprise Server 15 SP5 | podman | Not affected |
| SUSE Linux Enterprise Server 15 SP5-LTSS | podman | Not affected |
| SUSE Linux Enterprise Server 15 SP6 | podman | Not affected |
| SUSE Linux Enterprise Server 15 SP6-LTSS | podman | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | podman | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | podman | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | podman | Not affected |
| SUSE Manager Proxy 4.3 | podman | Not affected |
| SUSE Manager Retail Branch Server 4.3 | podman | Not affected |
| SUSE Manager Server 4.3 | podman | Not affected |
| Products past their end of life and not receiving proactive updates anymore. | ||
| SUSE CaaS Platform 4.0 | podman | Not affected |
| SUSE Enterprise Storage 6 | podman | Not affected |
| SUSE Enterprise Storage 7 | podman | Not affected |
| SUSE Enterprise Storage 7.1 | podman | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1 | podman | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS | podman | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS | podman | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2 | podman | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS | podman | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | podman | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3 | podman | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS | podman | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | podman | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4 | podman | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | podman | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | podman | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP6 | podman | Not affected |
| SUSE Linux Enterprise Micro 5.0 | podman | Not affected |
| SUSE Linux Enterprise Micro 5.1 | podman | Not affected |
| SUSE Linux Enterprise Micro 5.2 | podman | Not affected |
| SUSE Linux Enterprise Module for Containers 15 SP1 | podman | Not affected |
| SUSE Linux Enterprise Module for Containers 15 SP2 | podman | Not affected |
| SUSE Linux Enterprise Module for Containers 15 SP3 | podman | Not affected |
| SUSE Linux Enterprise Server 15 SP1 | podman | Not affected |
| SUSE Linux Enterprise Server 15 SP1-BCL | podman | Not affected |
| SUSE Linux Enterprise Server 15 SP1-LTSS | podman | Not affected |
| SUSE Linux Enterprise Server 15 SP2 | podman | Not affected |
| SUSE Linux Enterprise Server 15 SP2-BCL | podman | Not affected |
| SUSE Linux Enterprise Server 15 SP2-LTSS | podman | Not affected |
| SUSE Linux Enterprise Server 15 SP3 | podman | Not affected |
| SUSE Linux Enterprise Server 15 SP3-BCL | podman | Not affected |
| SUSE Linux Enterprise Server 15 SP3-LTSS | podman | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP1 | podman | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP2 | podman | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP3 | podman | Not affected |
| SUSE Manager Proxy 4.0 | podman | Not affected |
| SUSE Manager Proxy 4.1 | podman | Not affected |
| SUSE Manager Proxy 4.2 | podman | Not affected |
| SUSE Manager Retail Branch Server 4.0 | podman | Not affected |
| SUSE Manager Retail Branch Server 4.1 | podman | Not affected |
| SUSE Manager Retail Branch Server 4.2 | podman | Not affected |
| SUSE Manager Server 4.0 | podman | Not affected |
| SUSE Manager Server 4.1 | podman | Not affected |
| SUSE Manager Server 4.2 | podman | Not affected |
| openSUSE Leap 15.3 | podman | Not affected |
| openSUSE Leap 15.4 | podman | Not affected |
| openSUSE Leap 15.5 | podman | Not affected |
| openSUSE Leap 15.6 | podman | Not affected |
| openSUSE Leap Micro 5.2 | podman | Not affected |
| openSUSE Leap Micro 5.3 | podman | Not affected |
| openSUSE Leap Micro 5.4 | podman | Not affected |
| openSUSE Leap Micro 5.5 | podman | Not affected |
| Products at an unknown state of their lifecycle. | ||
| SLES-CHOST-BYOS-Aliyun | podman | Not affected |
| SLES-CHOST-BYOS-Azure | podman | Not affected |
| SLES-CHOST-BYOS-EC2 | podman | Not affected |
| SLES-CHOST-BYOS-GCE | podman | Not affected |
| SLES-CHOST-BYOS-GDC | podman | Not affected |
| SLES-CHOST-BYOS-SAP-CCloud | podman | Not affected |
| Container Status | ||
| rancher/elemental-teal-rt/5.4 rancher/elemental-teal/5.4 suse/sle-micro/5.5 | podman | Not affected |
SUSE Timeline for this CVE
CVE page created: Mon Aug 17 16:28:52 2026CVE page last modified: Tue Aug 18 11:29:14 2026