# CVE-2026-40868

## Summary

- **CVE ID:** CVE-2026-40868
- **Severity:** HIGH
- **CVSS Score:** 8.1 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N)
- **CWE:** CWE-922
- **Published:** Apr 21, 2026
- **Last Modified:** Apr 22, 2026

## 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.

## Affected Products

- kyverno — kyverno (< 1.16.4)

## References

- [CNA](https://github.com/kyverno/kyverno/security/advisories/GHSA-q93q-v844-jrqp)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.29%
- **EPSS Percentile:** 21.3

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._