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CVE-2026-73269

9.9 · CRITICAL

A flaw was found in the cluster-curator-controller component.

Published Aug 12, 2026CWE-269EPSS 0.56%

Overview

CVE-2026-73269 is a critical-severity vulnerability. It was published on August 12, 2026 and has a CVSS 3.1 base score of 9.9 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.9, rated CRITICAL. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

A flaw was found in the cluster-curator-controller component. A local user, by creating a ClusterCurator resource with a specific naming convention, can trigger the creation of a cluster-scoped ClusterRoleBinding. This allows the user to escalate their privileges from namespace-local access to cluster-wide control. This privilege escalation grants broad permissions, including the ability to access and manipulate secrets, manage cluster actions, and delete hosted clusters or node pools.

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

Refaccess.redhat.com/errata/RHSA-2026:59556Refaccess.redhat.com/errata/RHSA-2026:59557Refaccess.redhat.com/errata/RHSA-2026:59558Refaccess.redhat.com/errata/RHSA-2026:59559Refaccess.redhat.com/errata/RHSA-2026:59579Refaccess.redhat.com/errata/RHSA-2026:59593Refaccess.redhat.com/security/cve/CVE-2026-73269Refbugzilla.redhat.com/show_bug.cgi?id=2514220

How CyberStrike helps

Frequently asked questions

What is CVE-2026-73269?

CVE-2026-73269 is a critical-severity vulnerability. It was published on August 12, 2026 and has a CVSS 3.1 base score of 9.9 (CRITICAL).

How severe is CVE-2026-73269?

This vulnerability has a CVSS 3.1 base score of 9.9, rated CRITICAL. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-73269?

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-2026-73269?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-73269 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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