---
id: CVE-2026-84200
title: >-
  Kyverno versions v1.9.0 through v1.12.7 contain a policy exception handling
  flaw
summary: >-
  Kyverno versions v1.9.0 through v1.12.7 contain a policy exception handling
  flaw. When a policy in enforce mode is combined with two PolicyExceptions, the
  less restrictive exception takes precedence, allowing an attacker to bypass
  the po…
severity: critical
cvss: 9
cvssVector: 'CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H'
cwe:
  - CWE-284
vendor: kyverno
product: github.com/kyverno/kyverno
affected:
  - 'github.com/kyverno/kyverno >= 1.9.0, < 1.13.0'
patched:
  - github.com/kyverno/kyverno 1.13.0
published: '2026-09-01'
updated: '2026-09-10'
sourceUpdated: '2026-09-10T15:43:03.760'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-84200'
references:
  - url: 'https://github.com/kyverno/kyverno/security/advisories/GHSA-gg4x-fgg2-h9w9'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/kyverno-before-1.13.0-policy-bypass-via-multiple-exceptions
    label: disclosure@vulncheck.com
  - url: 'https://github.com/kyverno/kyverno/security/advisories/GHSA-gg4x-fgg2-h9w9'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
  - url: 'https://github.com/kyverno/kyverno'
tags:
  - nvd
  - osv
  - go
epss: 0.00273
epssPercentile: 0.17516
aliases:
  - GHSA-gg4x-fgg2-h9w9
  - GO-2026-4285
ecosystem: go
ingestedAt: '2026-09-02T19:31:26.830Z'
---

## Overview

Kyverno versions v1.9.0 through v1.12.7 contain a policy exception handling flaw. When a policy in enforce mode is combined with two PolicyExceptions, the less restrictive exception takes precedence, allowing an attacker to bypass the policy by crafting a resource name that matches the second exception's name pattern (e.g., '*ingress*'). This can be used to circumvent policies such as one blocking hostPath volumes. Fixed in v1.13.0.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Package advisory (CVE-2026-84200)

Affected packages:

- `github.com/kyverno/kyverno >= 1.9.0, < 1.13.0`

Patched in:

- `github.com/kyverno/kyverno 1.13.0`

Source: https://osv.dev/vulnerability/GHSA-gg4x-fgg2-h9w9