Auth bypass in Red Hat Builds For Openshift
CVE-2026-50240
A flaw was found in OpenShift Pipelines-as-Code (PAC). PAC does not verify whether the creator of a Repository custom resource has permission to create PipelineRuns. A namespace user with only Repository and Secret create/delete permissions can cause PAC to execute attacker-controlled PipelineRuns as the auto-provisioned pipeline ServiceAccount, which carries ClusterRole/edit by default. This results in namespace-scoped privilege escalation, enabling Secret read, resource creation/modification/deletion, and potential supply chain injection in CI/CD namespaces.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- access.redhat.com/security/cve/CVE-2026-50240 (vdb-entry)
- RHBZ#2484752 (issue-tracking)
Frequently asked questions
- What is CVE-2026-50240?
- CVE-2026-50240 is a high-severity vulnerability in Red Hat Builds For Openshift, classified under Missing Authorization. CVSS score: 8.8/10. Published 2026-11-06.
- How severe is CVE-2026-50240?
- High severity. CVSS v3 base score is 8.8 out of 10.