CVE-2026-122320

HIGH 7.7

Kyverno before 1.19.2 Cross-Namespace Resource Read via generate.clone

CVSS Score

7.7

EPSS Score

0.0%

EPSS Percentile

0th

Kyverno before 1.19.2 contains a missing authorization vulnerability that allows namespaced Policy authors to read resources in other namespaces by templating generate.clone or cloneList namespace values. Attackers can annotate a triggering ConfigMap so the background-controller copies a victim namespace's sensitive ConfigMap into the attacker's namespace, enabling cross-tenant data disclosure.

CWE	CWE-862
Vendor	kyverno
Product	kyverno
Published	Nov 5, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

None

Availability

None

Affected Versions

kyverno / kyverno

0 < 1.19.2

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/kyverno/kyverno/security/advisories/GHSA-493q-9xvg-9xf3 vulncheck.com: https://www.vulncheck.com/advisories/kyverno-before-1.19.2-cross-namespace-resource-read-via-generate-clone

Credits

iaohkut-from-NightWolf-Team