CVE-2026-83495
Trainer: trainer: trainjob env passthrough enables valuefrom.secretkeyref injection for namespace secret exfiltration
A flaw was found in the Trainer v2 TrainJob API. A user with permissions to create TrainJobs can exploit this by injecting `valueFrom.secretKeyRef` into environment variable definitions. This allows them to read and exfiltrate sensitive information (secrets) from the namespace, leading to a privilege escalation. This occurs when the TrainJob Role-Based Access Control (RBAC) is broader than the Secret read RBAC.
Fixes and workarounds
Workaround
To mitigate this vulnerability, ensure that the Role-Based Access Control (RBAC) for users creating TrainJobs is aligned with their Secret read permissions. Alternatively, restrict the `valueFrom.secretKeyRef` field within the validating webhook to an allowlist of permitted secret names. Review and adjust RBAC policies to prevent users from creating TrainJobs with broader access to Secrets than intended.
Source: CNA: redhatAffected products and versions
| Product | Versions | Authority |
|---|---|---|
| Red Hat OpenShift AI (RHOAI) Red Hat rhoai/odh-trainer-rhel9
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: unknown |
CNA: redhat |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
No CVSS assessment reported. An unscored record is not a low-severity determination.
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://access.redhat.com/security/cve/CVE-2026-83495CNA: redhat · vdb-entry, x_refsource_REDHAT
- https://bugzilla.redhat.com/show_bug.cgi?id=2526350CNA: redhat · issue-tracking, x_refsource_REDHAT
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