# CVE-2026-41323

> Vulnerability · severity: **HIGH** (CVSS 8.1).

## Description

Kyverno is a policy engine designed for cloud native platform engineering teams. Prior to versions 1.18.0-rc1, 1.17.2-rc1, and 1.16.4, Kyverno's apiCall feature in ClusterPolicy automatically attaches the admission controller's ServiceAccount token to outgoing HTTP requests. The service URL has no validation — it can point anywhere, including attacker-controlled servers. Since the admission controller SA has permissions to patch webhook configurations, a stolen token leads to full cluster compromise. Versions 1.18.0-rc1, 1.17.2-rc1, and 1.16.4 patch the issue.

## Key facts

- **CVE ID:** CVE-2026-41323
- **Published:** 2026-04-24
- **CVSS severity:** HIGH
- **CVSS base score:** 8.1
- **CWE codes:** CWE-200, CWE-918

## Affected products

- `kyverno:kyverno`

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-41323

## Citation

> AI Analytics. CVE-2026-41323. Retrieved 2026-07-11 from https://api.ai-analytics.org/cve/CVE-2026-41323. Derived from NIST NVD. Licensed CC0.

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