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CVE-2026-122310 Details

Description

Kyverno from 1.19.1 before 1.19.2 validates a Policy's context.apiCall urlPath after cleaning it but executes the raw path, whose fragment or query the Kubernetes client discards. A namespace-scoped user who can create a Policy can hide ../ segments behind # or ? to reach cluster-scoped endpoints with Kyverno's ServiceAccount, gaining cluster admin.

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-3xfv-vq8x-qhg4	[email protected]
https://www.vulncheck.com/advisories/kyverno-1.19.1-before-1.19.2-privilege-escalation-via-policy-apicall-urlpath	[email protected]

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-436	Interpretation Conflict	[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

1 change record found show changes