Vulnerability in Kyverno
CVE-2026-122314
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/kyverno/kyverno/security/advisories/GHSA-x4xq-p8g4-6fwg (vendor-advisory)
- www.vulncheck.com/advisories/kyverno-before-1.19.2-denial-of-service-via-shallo… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-122314?
- CVE-2026-122314 is a high-severity vulnerability in Kyverno, classified under CWE-248. CVSS score: 7.5/10. Published 2026-11-05.
- How severe is CVE-2026-122314?
- High severity. CVSS v3 base score is 7.5 out of 10.