CVE-2026-33414
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 $()…
Does this matter?
Lower severity and a low EPSS score (0.61%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 4.0
- 4.0 MEDIUMCVSS: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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.61% probability · 47th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-78, CWE-94
- Affected
- podman project/podman
- Source
- security-advisories@github.com
References
- https://github.com/containers/podman/commit/571c842bd357ee626019ea97d030fb772fc654edPatch
- https://github.com/containers/podman/security/advisories/GHSA-hc8w-h2mf-hp59Patch, Vendor Advisory
- 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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.