CVE-2026-84200
Kyverno before v1.13.0 Policy Bypass via Multiple Exceptions
CVSS Score
9.0
EPSS Score
0.0%
EPSS Percentile
0th
Kyverno versions v1.9.0 through v1.12.7 contain a policy exception handling flaw. When a policy in enforce mode is combined with two PolicyExceptions, the less restrictive exception takes precedence, allowing an attacker to bypass the policy by crafting a resource name that matches the second exception's name pattern (e.g., '*ingress*'). This can be used to circumvent policies such as one blocking hostPath volumes. Fixed in v1.13.0.
| CWE | CWE-284 |
| Vendor | kyverno |
| Product | kyverno |
| Published | Sep 1, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
kyverno / kyverno
0 < 1.13.0
References
Credits
🔍 r0binak