CVE-2026-10840CWE-732

CVE-2026-10840

High · published June 4, 2026

CVSS v3.1
7.1
EPSS
0%
Percentile
11.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
CVSS v4.0
Not supplied
EPSS
0.00220 · 11.8th percentile
Weakness
CWE-732 · Incorrect Permission Assignment for Critical Resource
Published
2026-06-04T16:16Z
References (9)
https://access.redhat.com/errata/RHSA-2026:36648 · [email protected]https://access.redhat.com/errata/RHSA-2026:41036 · [email protected]https://access.redhat.com/security/cve/CVE-2026-10840 · [email protected]https://bugzilla.redhat.com/show_bug.cgi?id=2484720 · [email protected]https://access.redhat.com/errata/RHSA-2026:36648 · 0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/errata/RHSA-2026:41036 · 0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/security/cve/CVE-2026-10840 · 0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://bugzilla.redhat.com/show_bug.cgi?id=2484720 · 0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-10840.json · 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
EPSS history
Timeline
  • 04 JUN 12:04Z
    Openshift-pipelines-operator-rh: openshift-pipelines-operator: tekton-scheduler-rolebinding grants system:authenticated write access to kueue and cert-manager resources
    cvelistv5