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CVE-2026-10840

7.1 · HIGH

A flaw was found in the OpenShift Pipelines operator.

Published Jun 4, 2026CWE-732EPSS 0.22%

Overview

CVE-2026-10840 is a high-severity vulnerability. It was published on June 4, 2026 and has a CVSS 3.1 base score of 7.1 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

A flaw was found in the OpenShift Pipelines operator. The tekton-scheduler-rolebinding ClusterRoleBinding grants the system:authenticated group write access to Kueue and cert-manager custom resources via the tekton-scheduler-role ClusterRole. When Kueue or cert-manager CRDs are present on the cluster, any authenticated user can disrupt workload scheduling, tamper with scheduling priorities, delete other tenants' Workload objects, or induce cert-manager to overwrite TLS Secrets including the default ingress controller certificate.

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-2026:36648Refaccess.redhat.com/errata/RHSA-2026:41036Refaccess.redhat.com/security/cve/CVE-2026-10840Refbugzilla.redhat.com/show_bug.cgi?id=2484720Refaccess.redhat.com/errata/RHSA-2026:36648Refaccess.redhat.com/errata/RHSA-2026:41036Refaccess.redhat.com/security/cve/CVE-2026-10840Refbugzilla.redhat.com/show_bug.cgi?id=2484720Refsecurity.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-10840.json

How CyberStrike helps

Frequently asked questions

What is CVE-2026-10840?

CVE-2026-10840 is a high-severity vulnerability. It was published on June 4, 2026 and has a CVSS 3.1 base score of 7.1 (HIGH).

How severe is CVE-2026-10840?

This vulnerability has a CVSS 3.1 base score of 7.1, 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-2026-10840?

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-2026-10840?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-10840 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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