# CVE-2026-22039: GO-2026-4381 - Kyverno Cross-Namespace Privilege Escalation via Policy apiCall in github.com/kyverno/kyverno

Source: https://junglewise.ai/threats/cve-2026-22039-kyverno-cross-namespace-privilege-escalation-via-policy-apicall  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-02-02  
License: CC BY 4.0 with a link back

CVE-2026-22039 · Severity: low · CVSS 3.1 · Published 2026-02-02

Kyverno Cross-Namespace Privilege Escalation via Policy apiCall in github.com/kyverno/kyverno

Technologies: [github.com/kyverno/kyverno (Go)](https://junglewise.ai/threats/technologies/github-com-kyverno-kyverno). Vendors: [Go](https://junglewise.ai/threats/vendors/go).

## Quick answers

**Is CVE-2026-22039 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-22039 being exploited in the wild.

**How severe is CVE-2026-22039?** Low severity, with a CVSS score of 3.1, published 2 February 2026.

**Which products and versions are affected?** github.com/kyverno/kyverno (Go) SEMVER:introduced=0,fixed=1.15.3, SEMVER:introduced=0,fixed=1.15.3,introduced=1.16.0-rc.1,fixed=1.16.3.

**Is there a fix for CVE-2026-22039?** Yes. github.com/kyverno/kyverno (Go): upgrade to 1.15.3, 1.16.3 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2026-22039?** Check whether you run github.com/kyverno/kyverno (Go) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- github.com/kyverno/kyverno (Go): upgrade to 1.15.3, 1.16.3 or later

  ```sh
  go get github.com/kyverno/kyverno@v1.16.3
  ```


## Affected products

- github.com/kyverno/kyverno (Go) SEMVER:introduced=0,fixed=1.15.3, SEMVER:introduced=0,fixed=1.15.3,introduced=1.16.0-rc.1,fixed=1.16.3

## Identifiers

- CVE-2026-22039
- GHSA-8p9x-46gm-qfx2
- GO-2026-4381

## Related threats

- [Kyverno policy bypass via multiple exceptions](https://junglewise.ai/threats/cve-2026-84200-kyverno-policy-bypass-via-multiple-exceptions)
- [Kyverno APICall server-side request forgery (SSRF) via unvalidated URL](https://junglewise.ai/threats/cve-2026-84199-kyverno-apicall-server-side-request-forgery-ssrf-via-unvalidated)
- [Kyverno server-side request forgery in apiCall](https://junglewise.ai/threats/cve-2026-84196-kyverno-server-side-request-forgery-in-apicall)
- [Kyverno apiCall credential leak to external endpoints](https://junglewise.ai/threats/cve-2026-84195-kyverno-apicall-credential-leak-to-external-endpoints)
- [Kyverno server-side request forgery via Service Calls](https://junglewise.ai/threats/cve-2025-15613-kyverno-server-side-request-forgery-via-service-calls)