SB20260414110 - Code injection in Podman on Windows

Description

This security bulletin contains information about 1 vulnerability.

1) OS Command Injection (CVE-ID: CVE-2026-33414)

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

CVSSv4: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to execute arbitrary commands on the Windows host.

The vulnerability exists due to command injection in pkg/machine/hyperv/stubber.go when resizing a HyperV virtual disk using a user-controlled VM image path in a PowerShell double-quoted string. A remote attacker can supply a crafted machine name or image directory containing a PowerShell subexpression to execute arbitrary commands on the Windows host.

The issue affects only the Windows-specific HyperV machine backend.

Remediation

Install update from vendor's website.

References

• https://github.com/containers/podman/security/advisories/GHSA-hc8w-h2mf-hp59
• https://github.com/advisories/GHSA-hc8w-h2mf-hp59