CVE-2026-18951: Red Hat OpenShift AI 3.3 · Privilege Defined With Unsafe Actions
Affects Red Hat OpenShift AI 3.3Source CVE Database V5
Not known to be exploited · CVSS 8.8 High.
Data as of 7 Nov 2026, 23:24 UTC
- EPSS
- 0.9% chance of exploitation in 30 days – higher than 60% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 10 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 8 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Red HatRed Hat OpenShift AI 3.3 | Affected– | Fixed in– |
| Red HatRed Hat OpenShift AI 3.3 | Affected– | Fixed in– |
| Red HatRed Hat OpenShift AI 3.4 | Affected– | Fixed in– |
| Red HatRed Hat OpenShift AI 3.4 | Affected– | Fixed in– |
| Red HatRed Hat OpenShift AI 3.5 | Affected– | Fixed in– |
| Red HatRed Hat OpenShift AI 3.5 | Affected– | Fixed in– |
AI-suggested
Administrators should review and adjust Kubernetes RBAC configurations within Red Hat OpenShift AI to explicitly manage trainjobs permissions. This includes removing trainjobs from the aggregate-to-edit ClusterRole labels or requiring explicit RoleBindings for trainjobs access. These changes prevent implicit permission grants to namespace editors and reduce the attack surface. A restart or reload of affected components may be necessary for changes to take effect.
Description
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.
References
- access.redhat.com/security/cve/CVE-2026-18951 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2511187 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:53263 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:53262 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:60520 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:60367 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:73987 (opens in a new tab)