Policy enforcement bypass via suppressed namespace lookup errors
Published Apr 30, 2025 · Updated Apr 30, 2025
Policy enforcement bypass in Kyverno before 1.13.5 and 1.14.0 pre-releases allows remote authenticated users to bypass admission rules. GetNamespaceSelectorsFromNamespaceLister suppresses NamespaceLister errors and returns an empty label map, causing namespace-selector rules to be evaluated against the wrong namespace state. Exploitation requires Kubernetes API access and a stale informer cache; accepted requests can evade security-critical validation or mutation, although the upstream advisory found no reliable way to induce the cache condition.
Summary
What happened
Policy enforcement bypass in Kyverno before 1.13.5 and 1.14.0 pre-releases allows remote authenticated users to bypass admission rules. GetNamespaceSelectorsFromNamespaceLister suppresses NamespaceLister errors and returns an empty label map, causing namespace-selector rules to be evaluated against the wrong namespace state. Exploitation requires Kubernetes API access and a stale informer cache; accepted requests can evade security-critical validation or mutation, although the upstream advisory found no reliable way to induce the cache condition.
The record
- CVE
- CVE-2025-46342
- Published
- Apr 30, 2025
- Updated
- Apr 30, 2025
- Vendor
- Kyverno
- Product
- Kyverno
- Classifications
- CWE-1287, T1562.001
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Apr 30, 2025CVE publishedPublication date reported by the CVE source.
- Apr 30, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=< 1.13.5
- Affected versionversion=>= 1.14.0-alpha.1, < 1.14.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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