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Fencer Vulns
high 8.8

CVE-2026-18951 json

Odh-training-operator-rhel9: [trainer v2 security] trn-02: rhoai overlay aggregates trainjobs crud into standard edit clusterrole

published 2026-08-10 2 mo ago modified 2026-09-30 39 d ago also EUVD-2026-55821

cvss
8.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 60%
public exploits
0
none known

Summary

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.

Patch / fix

  • Red Hat Red Hat OpenShift AI 3.3 1785188461, 1790137153
  • Red Hat Red Hat OpenShift AI 3.4 1784814352, 1787361677
  • Red Hat Red Hat OpenShift AI 3.5 1786552250, 1786552271

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-18951 updated cvss 8.8

odh-training-operator-rhel9: [Trainer v2 Security] TRN-02: RHOAI overlay aggregates trainjobs CRUD into standard edit ClusterRole

  • Red Hat OpenShift AI 3.3 rhoai/odh-training-operator-rhel9 1785188461, rhoai/odh-training-operator-rhel9 1790137153
    fixed: vendor fix RHSA-2026:73987
  • Red Hat OpenShift AI 3.4 rhoai/odh-training-operator-rhel9 1784814352, rhoai/odh-training-operator-rhel9 1787361677
    fixed: vendor fix RHSA-2026:60520
  • Red Hat OpenShift AI 3.5 rhoai/odh-latency-predictor-training-rhel9 1786552250, rhoai/odh-latency-predictor-prediction-rhel9 1786552271
    fixed: vendor fix RHSA-2026:60367
  • Red Hat OpenShift AI 3.3 rhoai/odh-cli-rhel9 1790070206, rhoai/rhai-cli-rhel9 1790070206, rhoai/odh-mlflow-rhel9 1789653606, rhoai/odh-trainer-rhel9 1785187865, rhoai/odh-trainer-rhel9 1790136369, rhoai/odh-maas-api-rhel9 1790131842, +103 more Red Hat OpenShift AI 3.4 rhoai/odh-cli-rhel9 1787330837, rhoai/rhai-cli-rhel9 1787330837, rhoai/odh-automl-rhel9 1786612415, rhoai/odh-mlflow-rhel9 1787226790, rhoai/odh-autorag-rhel9 1786612637, rhoai/odh-trainer-rhel9 1784039162, +135 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
2 mo ago

Exploit prediction

0.92% chance of exploitation in the next 30 days, higher than 60% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Red Hat Red Hat OpenShift AI 3.3
  • Red Hat Red Hat OpenShift AI 3.4
  • Red Hat Red Hat OpenShift AI 3.5

Classification

Weakness
  • CWE-267 Privilege Defined With Unsafe Actions
  • CWE-284 Improper Access Control

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.