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CVE-2026-41323

8.1 · HIGH

Kyverno is a policy engine designed for cloud native platform engineering teams.

Published Apr 24, 2026CWE-200EPSS 0.57%

Overview

CVE-2026-41323 is a high-severity vulnerability. It was published on April 24, 2026 and has a CVSS 3.1 base score of 8.1 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/kyverno/kyverno/commit/bc4f91c4801b1eaa2edc0a14e2f1b0af8cf0c1f5GitHubgithub.com/kyverno/kyverno/commit/c2eab00033e635bda4e4efb58c1b472b41728bb6GitHubgithub.com/kyverno/kyverno/commit/f70e8ac1e7acd2e3844f9553e4a884f07f953de0GitHubgithub.com/kyverno/kyverno/security/advisories/GHSA-f9g8-6ppc-pqq4GitHubgithub.com/kyverno/kyverno/security/advisories/GHSA-f9g8-6ppc-pqq4

How CyberStrike helps

Frequently asked questions

What is CVE-2026-41323?

CVE-2026-41323 is a high-severity vulnerability. It was published on April 24, 2026 and has a CVSS 3.1 base score of 8.1 (HIGH).

How severe is CVE-2026-41323?

This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-41323?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-41323?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-41323 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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