CVE-2025-6032 – This vulnerability in Podman's machine init com... (How to Fix)

Q: What is the severity of CVE-2025-6032?

CVE-2025-6032 has a CVSS score of 8.3 (HIGH). This vulnerability in Podman's machine init command allows man-in-the-middle attacks by failing to verify TLS certificates when downloading VM images from OCI registries. Attackers can intercept and replace legitimate VM images with malicious ones during download. This affects all Podman users who use the podman machine init command with untrusted networks.

📋 TL;DR

This vulnerability in Podman's machine init command allows man-in-the-middle attacks by failing to verify TLS certificates when downloading VM images from OCI registries. Attackers can intercept and replace legitimate VM images with malicious ones during download. This affects all Podman users who use the podman machine init command with untrusted networks.

💻 Affected Systems

Products:

Podman

Versions: Specific versions not specified in provided references; check Red Hat advisories for exact affected versions

Operating Systems: Linux, macOS, Windows

Default Config Vulnerable: ⚠️ Yes

Notes: Only affects podman machine init command when downloading VM images from OCI registries over untrusted networks.

⚠️ Manual Verification Required

This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.

Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).

🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.

Recommended Actions:

Review the CVE details at NVD
Check vendor security advisories for your specific version
Test if the vulnerability is exploitable in your environment
Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attackers can replace legitimate VM images with malicious ones containing backdoors, malware, or compromised configurations, leading to complete compromise of the container environment and potentially the host system.

🟠

Likely Case

Attackers intercept VM image downloads to inject malicious code or configurations, enabling persistence, data theft, or lateral movement within the environment.

🟢

If Mitigated

With proper network controls and certificate validation, the attack surface is limited to environments where attackers can intercept TLS traffic between Podman and registries.

🌐 Internet-Facing: HIGH

🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No

Weaponized: UNKNOWN

Unauthenticated Exploit: ✅ No

Complexity: MEDIUM

Requires man-in-the-middle position between Podman and OCI registry during VM image download.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Check specific Red Hat advisories for patched versions

Vendor Advisory: https://access.redhat.com/errata/RHSA-2025:10295

Restart Required: No

Instructions:

1. Update Podman to the latest patched version from your distribution's repository. 2. For Red Hat systems, apply the relevant RHSA patches. 3. Verify the fix by checking Podman version.

🔧 Temporary Workarounds

Use trusted networks only

all

Only run podman machine init on trusted, secure networks where man-in-the-middle attacks are unlikely

Download images manually with verification

all

Manually download VM images from trusted sources with proper TLS certificate verification, then use them locally

🧯 If You Can't Patch

Avoid using podman machine init command on untrusted networks
Implement network segmentation and monitoring to detect man-in-the-middle attempts

🔍 How to Verify

Check if Vulnerable:

Check if your Podman version is affected by comparing against Red Hat advisories. Run podman machine init in a test environment with a proxy to see if certificate warnings appear.

Check Version:

podman version

Verify Fix Applied:

After updating, test podman machine init with a proxy that presents invalid certificates - it should fail with certificate validation errors.

📡 Detection & Monitoring

Log Indicators:

Failed certificate validation warnings during podman machine init
Unexpected registry connections during VM image downloads

Network Indicators:

Unencrypted or improperly encrypted traffic to OCI registries during podman machine init
Suspicious man-in-the-middle patterns in network traffic

SIEM Query:

Search for podman machine init commands followed by network connections to OCI registries without proper TLS handshake completion

📊 Metadata

CVE ID: CVE-2025-6032

CVSS v3 Score: 8.3 (HIGH)

CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

CWE: CWE-295

EPSS Score: 0.05% exploit probability (15.3th percentile)

Published: June 24, 2025

Last Updated: November 29, 2025

🔗 References

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