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CVE-2025-46342— Kyverno vulnerable to bypass of policy rules that use namespace selectors in match statements

Quick assessment

Affected
kyverno kyverno
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Kyverno是Kyverno开源的一个为 Kubernetes 设计的策略引擎。 Kyverno 1.14.0之前版本存在安全漏洞，该漏洞源于命名空间选择器错误处理不当，可能导致绕过安全策略。

CVSS 8.6 · High EPSS 0.75% · P53

Possible ATT&CK Techniques 1 AI

T1098.004 · SSH Authorized Keys
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I. Basic Information for CVE-2025-46342

Vulnerability Information
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Vulnerability Title
Kyverno vulnerable to bypass of policy rules that use namespace selectors in match statements
Source: CVE Program / CVE List V5
Vulnerability Description
Kyverno is a policy engine designed for cloud native platform engineering teams. Prior to versions 1.13.5 and 1.14.0, it may happen that policy rules using namespace selector(s) in their match statements are mistakenly not applied during admission review request processing due to a missing error propagation in function `GetNamespaceSelectorsFromNamespaceLister` in `pkg/utils/engine/labels.go`. As a consequence, security-critical mutations and validations are bypassed, potentially allowing attackers with K8s API access to perform malicious operations. This issue has been patched in versions 1.13.5 and 1.14.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1287
Source: CVE Program / CVE List V5
Vulnerability Title
Kyverno 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Kyverno是Kyverno开源的一个为 Kubernetes 设计的策略引擎。 Kyverno 1.14.0之前版本存在安全漏洞，该漏洞源于命名空间选择器错误处理不当，可能导致绕过安全策略。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
kyverno kyverno < 1.13.5 -

II. Public POCs for CVE-2025-46342

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III. Intelligence Information for CVE-2025-46342

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Patches & Fixes for CVE-2025-46342 (1)

Vendor Advisories for CVE-2025-46342 (1)

IV. Related Vulnerabilities

Same product: kyverno
Same vendor: kyverno
Same weakness: CWE-1287

V. Comments for CVE-2025-46342

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