CVE-2026-33414
HIGH7.8EPSS 0.02%PowerShell Command Injection in Podman HyperV Machine
Description
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.
Affected packages (3)
- Debian/podmanfrom 0
- Go/github.com/containers/podman/v4>= 4.8.0, <= 4.9.5
- Go/github.com/containers/podman/v5from 0, < 5.8.2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U |
| osv | CVSS 3.1 | HIGH7.8 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H |
References (5)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2026-33414
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2026-33414
- PATCHhttps://github.com/containers/podman
- WEBhttps://github.com/containers/podman/commit/571c842bd357ee626019ea97d030fb772fc654ed
- WEBhttps://github.com/containers/podman/security/advisories/GHSA-hc8w-h2mf-hp59