🛡️ CVE-2026-33414 — podman

🟠 CVSS 7.8 — High ✅ No Known Exploit NVD
7.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

PowerShell Command Injection in Podman HyperV Machine

Summary

A command injection vulnerability exists in Podman's HyperV machine backend. The VM image path is inserted into a PowerShell double-quoted string without sanitization, allowing $() subexpression injection.

Affected Code

File: pkg/machine/hyperv/stubber.go:647

```go

resize := exec.Command("powershell", []string{

"-command",

fmt.Sprintf("Resize-VHD \"%s\" %d", imagePath.GetPath(), newSize.ToBytes()),

}...)

```

Root Cause

PowerShell evaluates $() subexpressions inside double-quoted strings before executing the outer command. The fmt.Sprintf call places the user-controlled image path directly into double quotes without escaping or sanitization.

Impact

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 the Windows host. On typical Windows installations, this means SYSTEM-level code execution.

Patch

https://github.com/containers/podman/commit/571c842bd357ee626019ea97d030fb772fc654ed

The affected code is only used on Windows, all other operating systems are not affected by this and can thus ignore the CVE patch.

Credit

We like to thank Sang-Hoon Choi (@KoreaSecurity) for reporting this issue to us.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is high, an attacker needs low-level privileges on the target. No user interaction is required. The scope is changed, meaning a successful attack can affect components beyond the vulnerable one. Rated impact: confidentiality high, integrity high, availability high.

Affected software

CVE-2026-33414 is recorded against 6 packages.

  • github.com/containers/podman
  • github.com/containers/podman/v2
  • github.com/containers/podman/v3
  • github.com/containers/podman/v4
  • github.com/containers/podman/v5
  • podman (from 4.8.0 up to 5.8.2)

Timeline and source

Published on 25 June 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

github.com (Advisory)
nvd.nist.gov (Advisory)
github.com (Fix)

CVE-2026-33414 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity High
CVSS Score 7.8
CVSS Vector CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
CWE N/A
Public Exploit ✅ No
Source NVD
Published 2026-06-25
Updated 2026-08-12
Modified 2026-06-25

Affected Packages

Software From version Fixed in
github.com/containers/podman — —
github.com/containers/podman/v2 — —
github.com/containers/podman/v3 — —
github.com/containers/podman/v4 — —
github.com/containers/podman/v5 — —
podman 4.8.0 5.8.2

Similar Threats

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