CVE-2026-33414
PowerShell Command Injection in Podman HyperV Machine in github.com/containers/podman
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.
How to fix CVE-2026-33414
To remediate CVE-2026-33414, upgrade the affected package to a fixed version below.
- —no fix listed
- —no fix listed
- —no fix listed
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- —upgrade to 5.8.2 or later
- —upgrade to 5.8.2 or later
Is CVE-2026-33414 being exploited?
Low — EPSS is 0.6%, meaning exploitation activity has not been observed at scale.
Affected packages (8)
- from 0
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- >= 4.8.0, <= 4.9.5
- >= 4.8.0
- from 0, < 5.8.2
- from 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 |