CVE-2026-33414
Podman is a tool for managing OCI containers and pods. Versions 4.8.0 through 5.8.1 contain a command injection vulnerability in the HyperV machine backend in pkg/machine/hyperv/stubber.go, where the VM image path is inserted into a PowerShell double-quoted string without sanitization, allowing $() subexpression injection. Because PowerShell evaluates subexpressions inside double-quoted strings before executing the outer command, an attacker who can control the VM image path through a crafted machine name or image directory can execute arbitrary PowerShell commands with the privileges of the Podman process. On typical Windows installations this means SYSTEM-level code execution, and only Windows is affected as the code is exclusive to the HyperV backend. This issue has been patched in version 5.8.2.
脆弱性の種類
Podman is a tool for managing OCI containers and pods. Versions 4.8.0 through 5.8.1 contain a command injection vulnerability in the HyperV machine backend in pkg/machine/hyperv/stubber.go, where the VM image path is inserted into a PowerShell double-quoted string without sanitization, allowing $() subexpression injection. Because PowerShell evaluates subexpressions inside double-quoted strings before executing the outer command, an attacker who can control the VM image path through a crafted machine name or image directory can execute arbitrary PowerShell commands with the privileges of the Podman process. On typical Windows installations this means SYSTEM-level code execution, and only Windows is affected as the code is exclusive to the HyperV backend. This issue has been patched in version 5.8.2.
影響を受ける製品
- podman_project podman
- microsoft windows
参考情報
- https://github.com/containers/podman/commit/571c842bd357ee626019ea97d030fb772fc654ed
- https://github.com/containers/podman/security/advisories/GHSA-hc8w-h2mf-hp59
- https://access.redhat.com/errata/RHSA-2026:8211
- https://access.redhat.com/security/cve/CVE-2026-33414
- https://bugzilla.redhat.com/show_bug.cgi?id=2458522
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33414.json