CVE-2026-122314
Kyverno before 1.19.2 Denial of Service via Shallow Variable Substitution Panic
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
Kyverno before 1.19.2 contains an unchecked type assertion in its variable-substitution engine that allows users who can submit resources to crash the policy engine. Attackers can submit resources with non-string fields referenced by {{- variable }} shallow substitution in policies, causing a panic that yields webhook denial of service and policy bypass under failurePolicy Ignore.
| CWE | CWE-248 |
| Vendor | kyverno |
| Product | kyverno |
| Published | Nov 5, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
kyverno / kyverno
0 < 1.19.2
References
Credits
r0binak