Vulnerability · Published Apr 14, 2026 · Assigned by GitHub_M
CVE-2026-33414PowerShell Command Injection in Podman HyperV Machine
High 8.8
In plain English
A high-severity OS command injection in podman from containers. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 49% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official 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 & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:13 | podman | no fix listed | DEBIAN-CVE-2026-33414 |
| Debian:14 | podman | 5.8.2+ds1-1 | DEBIAN-CVE-2026-33414 |
| Go | github.com/containers/podman | no fix listed | GO-2026-5421 |
| Go | github.com/containers/podman/v2 | no fix listed | GO-2026-5421 |
| Go | github.com/containers/podman/v3 | no fix listed | GO-2026-5421 |
| Go | github.com/containers/podman/v4 | no fix listed | GO-2026-5421 |
| Go | github.com/containers/podman/v4 | no fix listed | GHSA-hc8w-h2mf-hp59 |
| Go | github.com/containers/podman/v5 | 5.8.2 | GO-2026-5421 |
| Go | github.com/containers/podman/v5 | 5.8.2 | GHSA-hc8w-h2mf-hp59 |
| Ubuntu:25.10 | podman | no fix listed | UBUNTU-CVE-2026-33414 |
| Ubuntu:26.04:LTS | podman | no fix listed | UBUNTU-CVE-2026-33414 |
| Ubuntu:26.10 | podman | no fix listed | UBUNTU-CVE-2026-33414 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| containers | podman | >= 4.8.0, < 5.8.2 |
Weakness: CWE-78, CWE-94 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
References
- https://github.com/containers/podman/security/advisories/GHSA-hc8w-h2mf-hp59 x_refsource_CONFIRM
- https://github.com/containers/podman/commit/571c842bd357ee626019ea97d030fb772fc654ed x_refsource_MISC
- https://access.redhat.com/security/cve/CVE-2026-33414 vdb-entry, x_refsource_REDHAT
- RHBZ#2458522 issue-tracking, x_refsource_REDHAT
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33414.json x_sadp-csaf-vex
- https://access.redhat.com/errata/RHSA-2026:8211 vendor-advisory, x_refsource_REDHAT