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.
Published: 2026-11-05
Score: 9.4 Critical
EPSS: < 1% Very Low
KEV: No
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No solution or workaround provided in the CVE record.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

History

Tue, 10 Nov 2026 21:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


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

Type Values Removed Values Added
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.
Title Kyverno 1.19.1 before 1.19.2 Privilege Escalation via Policy apiCall urlPath
First Time appeared Kyverno
Kyverno kyverno
Weaknesses CWE-436
CPEs cpe:2.3:a:kyverno:kyverno:*:*:*:*:*:*:*:*
Vendors & Products Kyverno
Kyverno kyverno
References
Metrics cvssV3_1

{'score': 9.9, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.4, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-11-09T16:54:07.737Z

Reserved: 2026-11-04T23:23:51.290Z

Link: CVE-2026-122310

cve-icon Vulnrichment

Updated: 2026-11-09T16:12:02.575Z

cve-icon NVD

Status : Analyzed

Published: 2026-11-05T03:17:23.337

Modified: 2026-11-10T20:39:13.623

Link: CVE-2026-122310

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-05T04:45:14Z

Weaknesses