Vulnerability in Red Hat Openshift Ai 3.3
CVE-2026-18951
A flaw was found in the Red Hat OpenShift AI (RHOAI) overlay for the training operator. The RHOAI overlay incorrectly aggregates `trainjobs` management permissions into the native Kubernetes `edit ClusterRole`. This allows any user with `edit ClusterRole` permissions in a namespace to create, modify, and delete `TrainJobs`. When combined with a separate vulnerability (TRN-01) that permits arbitrary pod configurations, a remote attacker with namespace editor privileges could exploit this to escalate privileges, potentially leading to arbitrary code execution.
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
EPSS: 0.009 (57.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 57.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.009 · change: +0.003
Affected products
- Red Hat Openshift Ai 3.3 — versions 1785188461
- Red Hat Openshift Ai 3.4 — versions 1784814352
- Red Hat Openshift Ai (Rhoai)
Weakness classification (CWE)
References
- access.redhat.com/security/cve/CVE-2026-18951 (vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking)
- access.redhat.com/errata/RHSA-2026:53263 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:53262 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:60520 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:60367 (vendor-advisory)
Frequently asked questions
- What is CVE-2026-18951?
- CVE-2026-18951 is a high-severity vulnerability in Red Hat Openshift Ai 3.3, classified under Improper Access Control. CVSS score: 8.8/10. Published 2026-08-10.
- How severe is CVE-2026-18951?
- High severity. CVSS v3 base score is 8.8 out of 10.