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Improper Certificate ValidationWeakness · CWE-295

CVE-2026-1530

HIGH · 8.1 CVSS v3.1 Published 2026-02-02
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
87/100
Remediation priority · High
Remotely reachable Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
A flaw was found in fog-kubevirt. This vulnerability allows a remote attacker to perform a Man-in-the-Middle (MITM) attack due to disabled certificate validation. This enables the attacker to intercept and potentially alter sensitive communications between Satellite and OpenShift, resulting in information disclosure and data integrity compromise.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

The fog-kubevirt component has disabled TLS/SSL certificate validation, allowing an attacker positioned on the network path between Satellite and OpenShift to intercept traffic, read sensitive data in transit, and modify communications. This is a classic certificate validation bypass vulnerability.

MitigationEnable proper certificate validation in fog-kubevirt's TLS configuration and ensure valid certificates are deployed for all Satellite-to-OpenShift communications. Verify that the application's trust store correctly references the appropriate Certificate Authorities.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify if fog-kubevirt is installed
    Run 'gem list fog-kubevirt' or check your Ruby package manager for the fog-kubevirt gem/package. Also check if it appears in your project's Gemfile or requirements.txt.
    Affected if fog-kubevirt is present in the environment
  2. Determine fog-kubevirt version
    Run 'gem info fog-kubevirt' or check the installed version through your package manager. Compare the installed version against the affected version range for this CVE.
    Affected if The installed version falls within the affected version range and no patch has been applied
  3. Locate fog-kubevirt configuration files
    Search for configuration files named 'fog-kubevirt.yml', '.fog-kubevirt', or similar in /etc, the application root, home directory, or within the Satellite/foreman configuration directory. Also check for environment variables starting with 'FOG_KUBEVIRT_' or 'KUBEVIRT_'
    Affected if Configuration files exist and contain TLS/SSL settings
  4. Check for disabled certificate validation
    Inspect configuration files and any Ruby code or scripts that initialize the fog-kubevirt connection. Look for settings such as 'verify_ssl => false', 'ssl_verify_mode => OpenSSL::SSL::VERIFY_NONE', 'insecure => true', 'disable_ssl_verification' or similar flags that disable certificate validation.
    Affected if Certificate validation is explicitly disabled in configuration or code (verify_ssl set to false, verify_mode set to NONE, or insecure mode enabled)
  5. Inspect TLS connection settings
    Review the fog-kubevirt provider initialization code and configuration for Satellite to OpenShift communication. Check if the :connection_options include :ssl_verify_peer => false or if the Faraday/Excon connection is configured with verify: false.
    Affected if TLS certificate verification is not enforced for the Satellite to OpenShift connection

You are affected if fog-kubevirt is installed and its configuration or connection setup disables SSL/TLS certificate validation, allowing MITM attacks between Satellite and OpenShift.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Enable proper certificate validation in fog-kubevirt's TLS configuration and ensure valid certificates are deployed for all Satellite-to-OpenShift communications. Verify that the application's trust store correctly references the appropriate Certificate Authorities.

Have this fixed Scoped from the published advisory
  • Consultation4.0 h
  • Implementation6.0 h
  • Testing6.0 h
  • Review / QA3.0 h
19.0 hours of engineering $3,320
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-1530 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
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  • Version or environment caveats, and links to real fixes
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