CVE-2025-14459
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 · uneditedA flaw was found in KubeVirt Containerized Data Importer (CDI). This vulnerability allows a user to clone PersistentVolumeClaims (PVCs) from unauthorized namespaces, resulting in unauthorized access to data via the DataImportCron PVC source mechanism.
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 confidenceKubeVirt CDI contains a namespace isolation bypass where the DataImportCron PVC source mechanism allows users to clone PersistentVolumeClaims from any namespace, not just authorized ones. This enables unauthorized cross-namespace data access, violating Kubernetes namespace security boundaries.
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
- Changed
- Confidentiality
- High
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/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 checksWork through these to decide whether this CVE applies to you.
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Identify CDI installation and versionRun 'kubectl get cdi -A -o jsonpath="{.items[*].spec.imageTag}"' or 'kubectl get cdi -A' to see the deployed CDI version and compare to any patched releasesAffected if CDI is installed and the version is older than the patched release containing the fix for namespace isolation in DataImportCron PVC sources
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Detect DataImportCron resources with PVC sourcesRun 'kubectl get dataimportcron -A -o json' and inspect each resource's 'spec.source.pvc' field; if present, the namespace cloning mechanism is in useAffected if DataImportCron resources exist with 'spec.source.pvc' defined, enabling the vulnerable PVC cloning path across namespaces
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Verify namespace boundaries in CDI RBACReview ClusterRole and Role bindings for the CDI service account; check if any roles grant permissions to 'get' or 'list' PVCs across all namespaces without proper namespace restrictions, particularly for the CDI operatorAffected if CDI service accounts have broad PVC access (e.g., '*' verb on 'pvc' resource) across namespaces rather than namespace-scoped role bindings
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Check for cross-namespace PVC source referencesInspect existing DataImportCron objects with 'kubectl get dataimportcron -A -o yaml' and examine the 'spec.source.pvc.namespace' field; look for references to namespaces different from where the DataImportCron residesAffected if DataImportCron objects reference PVC sources in namespaces other than their own, which would be the exploitation vector for the authorization bypass
A user is affected if running an unpatched CDI version with DataImportCron PVC sources enabled and the CDI service account has cross-namespace PVC access permissions.
Generated from the published advisory. Verify against your own configuration.
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 dataImplement namespace-scoped RBAC policies restricting PVC clone operations and configure CDI to enforce namespace boundaries. Apply Kubernetes NetworkPolicies to further isolate PVC data paths.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2025-14459 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-14459 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Version or environment caveats, and links to real fixes
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