---
id: CVE-2026-83494
title: >-
  Training-operator: pytorchjob validateupdate casts oldjob from newobj,
  bypassing managedby immutability (asvs v5.1.3; upstream bug)
summary: >-
  A flaw was found in the training-operator. An incorrect object casting in the
  PyTorchJob ValidateUpdate webhook allows users to bypass an immutability
  check. This vulnerability could enable users to detach a queued job from its
  quota man…
severity: none
cwe:
  - CWE-693
vendor: Red Hat
product: rhoai/odh-training-operator-rhel9
affected:
  - rhoai/odh-training-operator-rhel9
published: '2026-11-06'
updated: '2026-11-06'
sourceUpdated: '2026-11-06T06:39:12.292Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-83494'
references:
  - url: 'https://access.redhat.com/security/cve/CVE-2026-83494'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2526348'
    label: RHBZ#2526348
tags:
  - cve.org
ingestedAt: '2026-11-06T06:46:27.257Z'
epss: 0.00168
epssPercentile: 0.06222
---

## Overview

A flaw was found in the training-operator. An incorrect object casting in the PyTorchJob ValidateUpdate webhook allows users to bypass an immutability check. This vulnerability could enable users to detach a queued job from its quota management system or hijack a running job's controller ownership. The primary impact is a Denial of Service (DoS) condition.

## Affected

- `rhoai/odh-training-operator-rhel9`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

### Workarounds

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.