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SCA: security update for github.com/kyverno/kyverno (GHSA-8p9x-46gm-qfx2)

critical Tenable Cloud Security Plugin ID 437132

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - Kyverno is a policy engine designed for cloud native platform engineering teams. Versions prior to 1.16.3
 and 1.15.3 have a critical authorization boundary bypass in namespaced Kyverno Policy apiCall. The
 resolved `urlPath` is executed using the Kyverno admission controller ServiceAccount, with no enforcement
 that the request is limited to the policy’s namespace. As a result, any authenticated user with permission
 to create a namespaced Policy can cause Kyverno to perform Kubernetes API requests using Kyverno’s
 admission controller identity, targeting any API path allowed by that ServiceAccount’s RBAC. This breaks
 namespace isolation by enabling cross-namespace reads (for example, ConfigMaps and, where permitted,
 Secrets) and allows cluster-scoped or cross-namespace writes (for example, creating ClusterPolicies) by
 controlling the urlPath through context variable substitution. Versions 1.16.3 and 1.15.3 contain a patch
 for the vulnerability. (CVE-2026-22039)

See Also

https://github.com/advisories/GHSA-8p9x-46gm-qfx2

Plugin Details

Severity: Critical

ID: 437132

Version: Revision 1.6

Type: Local

Family: SCA Checks

Published: 1/27/2026

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 94.39

Vendor

Vendor Severity: Critical

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 7

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C

CVSS Score Source: CVE-2026-22039

CVSS v3

Risk Factor: Critical

Base Score: 9.9

Temporal Score: 8.9

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 1/27/2026

Vulnerability Publication Date: 1/27/2026

Reference Information

CVE: CVE-2026-22039