Description
Kyverno before 1.19.2 contains a privilege escalation vulnerability that allows namespace admins to create resources beyond their RBAC because generate-rule admission checks verify the controller's permissions, not the author's. Attackers can create a namespaced Policy with generate rules targeting other namespaces or cluster-scoped kinds, making the background controller create or clone resources cluster-wide.
Published: 2026-11-05
Score: 9.3 Critical
EPSS: < 1% Very Low
KEV: No
AI Analysis

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Remediation

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Tracking

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Advisories

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History

Thu, 05 Nov 2026 02:45:00 +0000

Type Values Removed Values Added
Description Kyverno before 1.19.2 contains a privilege escalation vulnerability that allows namespace admins to create resources beyond their RBAC because generate-rule admission checks verify the controller's permissions, not the author's. Attackers can create a namespaced Policy with generate rules targeting other namespaces or cluster-scoped kinds, making the background controller create or clone resources cluster-wide.
Title Kyverno before 1.19.2 Privilege Escalation via Generate Rule Permission Check
First Time appeared Kyverno
Kyverno kyverno
Weaknesses CWE-269
CPEs cpe:2.3:a:kyverno:kyverno:*:*:*:*:*:*:*:*
Vendors & Products Kyverno
Kyverno kyverno
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-11-05T02:25:07.653Z

Reserved: 2026-11-04T23:23:51.289Z

Link: CVE-2026-122302

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-05T03:17:22.030

Modified: 2026-11-05T03:17:22.030

Link: CVE-2026-122302

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-05T04:00:14Z

Weaknesses