Bug 2567858 (CVE-2026-122315)

Summary: CVE-2026-122315 github.com/kyverno/kyverno: Kyverno: Denial of Service via crafted attestation statements
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: gbenhaim, niyer, twaugh
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Kyverno. An unauthenticated remote attacker can cause a Denial of Service (DoS) by supplying a crafted attestation statement containing an unexpected data type in an Open Container Initiative (OCI) manifest. Processing this payload triggers an internal application crash that halts the policy engine and can allow unverified images to bypass verification under permissive failure settings.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Description OSIDB Bzimport 2026-11-05 22:31:40 UTC
Kyverno before 1.19.2 contains an unchecked type assertion in buildStatementMap that allows unauthenticated attackers to crash the policy engine via crafted attestation statements. Attackers can push an OCI referrer manifest with a non-string type field to bypass image verification under failurePolicy Ignore or crash-loop the reports-controller.