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CVE-2026-122304 Details

Description

Kyverno from 1.17.0 before 1.19.2 contains an authorization bypass vulnerability that allows namespace admins to escape namespace confinement because the cleanup controller builds its context loader with a nil policy. Attackers can create a namespaced CleanupPolicy with apiCall or globalReference context entries to read cross-namespace Secrets and modify validatingwebhookconfigurations using the cleanup controller's ServiceAccount.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:9.9 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/kyverno/kyverno/security/advisories/GHSA-p58h-r4j3-h5vx	[email protected]
https://github.com/kyverno/kyverno/security/advisories/GHSA-rcxg-3f92-3mgr	[email protected]
https://www.vulncheck.com/advisories/kyverno-1.17.0-before-1.19.2-privilege-escalation-via-cleanuppolicy-context-loader	[email protected]

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-863	Incorrect Authorization	[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

1 change record found show changes