CVE-2026-18951: high-severity vulnerability in Red Hat OpenShift AI 3.3
Odh-training-operator-rhel9: [trainer v2 security] trn-02: rhoai overlay aggregates trainjobs crud into standard edit clusterrole
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.8epss 0.9%
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.
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 3.3Red Hat · Red Hat OpenShift AI 3.4Red Hat · Red Hat OpenShift AI 3.5Related CVEs — Red Hat OpenShift AI 3.3
In the same product, most dangerous first.
CVE-2026-33845HIGHGnutls: gnutls: denial of service via dtls zero-length fragmentEPSS 2.1%CVE-2023-52355HIGHLibtiff: tiffrasterscanlinesize64 produce too-big size and could cause oomEPSS 1.8%CVE-2026-42009HIGHGnutls: gnutls: denial of service via dtls packet reordering vulnerabilityEPSS 1.3%CVE-2026-33846HIGHGnutls: gnutls: denial of service via heap buffer overflow in dtls handshake fragment reassemblyEPSS 1.3%CVE-2026-18948CRITICALFeast: feast: unsafe dill deserialization of registry-stored udfs — rce on feature server and registry serverEPSS 1.1%CVE-2026-42010HIGHGnutls: gnutls: authentication bypass via nul character in usernameEPSS 1.1%
References
https://access.redhat.com/errata/RHSA-2026:53262https://access.redhat.com/errata/RHSA-2026:53263https://access.redhat.com/errata/RHSA-2026:60367https://access.redhat.com/errata/RHSA-2026:60520https://access.redhat.com/errata/RHSA-2026:73987https://access.redhat.com/security/cve/CVE-2026-18951https://bugzilla.redhat.com/show_bug.cgi?id=2511187