PT-2026-137327

CVE-2026-122305

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Published

2026-11-05

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Updated

2026-11-05

Description by

CVSS 3.1
7.7
High
MetricsAV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Kyverno before 1.19.2 contains a denial of service vulnerability in substituteVariablesIfAny that allows low-privileged users to hang the admission webhook via self-referential variable templates. Attackers can create resources whose annotations re-introduce the embedded policy variable, causing unbounded substitution loops that exhaust CPU and memory and block cluster-wide admission.
Exploitability
Fix
Impacts
Researchers
Vendors
Affected products
Weakness enumeration
CWE-835: Loop with Unreachable Exit Condition (\'Infinite Loop\')
Related identifiers
CVE-2026-122305
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