CVE-2026-10840

HIGH EPSS 3.6%

Published Jun 4, 20263w ago · Modified Jun 22, 20261w ago

7.1 CVSS 3.1

High

Published Jun 4, 2026 3w ago

Last Modified Jun 22, 2026 1w ago

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.

CVSS Details

Base Score

7.1

Exploitability

2.8

Impact

4.2

Vector string

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H

Attack Vector Network

Attack Complexity Low

Privileges Required Low

User Interaction None

Scope Unchanged

Confidentiality None

Integrity Low

Availability High

Threat Intelligence

EPSS Exploit Probability

3.6% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-732

References 2

access.redhat.com https://access.redhat.com/security/cve/CVE-2026-10840
bugzilla.redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=2484720

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.