# CVE-2026-40868

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

## Description

Kyverno is a policy engine designed for cloud native platform engineering teams. Prior to 1.16.4, kyverno’s apiCall servicecall helper implicitly injects Authorization: Bearer ... using the kyverno controller serviceaccount token when a policy does not explicitly set an Authorization header. Because context.apiCall.service.url is policy-controlled, this can send the kyverno serviceaccount token to an attacker-controlled endpoint (confused deputy). Namespaced policies are blocked from servicecall usage by the namespaced urlPath gate in pkg/engine/apicall/apiCall.go, so this report is scoped to ClusterPolicy and global context usage. This vulnerability is fixed in 1.16.4.

## Key facts

- **CVE ID:** CVE-2026-40868
- **Published:** 2026-04-21
- **CVSS severity:** HIGH
- **CVSS base score:** 8.1
- **CWE codes:** CWE-922

## Affected products

- `kyverno:kyverno`

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-40868

## Citation

> AI Analytics. CVE-2026-40868. Retrieved 2026-08-10 from https://api.ai-analytics.org/cve/CVE-2026-40868. Derived from NIST NVD. Licensed CC0.

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