cve.bz

CVE-2026-83494

no score yetEPSS 0.2%

No CVSS score yet. EPSS 0.2% estimated probability of exploitation activity in the next 30 days.

On this page
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.
EPSS
0.2% estimated probability of exploitation activity in the next 30 days; 6th percentile. Scored 2026-11-10. A forecast for this CVE across the internet, not for your own systems.
CWE
CWE-693 Protection Mechanism Failure
OWASP Top 10
A06:2025 Insecure Design
Published
Modified
NVD analysis
Awaiting analysis
Record from
the NVD, synced

Ask an AI about this CVE

Show the promptExplain CVE-2026-83494 for an engineer deciding whether to act. Use https://cve.bz/api/public/cves/CVE-2026-83494?via=ask-ai-copy and https://cve.bz/cve/CVE-2026-83494?via=ask-ai-copy as the source of truth: what is affected and which versions fix it, whether it is in CISA KEV, public exploits, and its EPSS (an internet-wide 30-day estimate of exploitation activity, not a forecast for my systems). If they give no fixed versions, use the CVE record https://cveawg.mitre.org/api/cve/CVE-2026-83494 or the vendor advisory, not third-party mirrors. Tell me how to check whether I am affected and how to verify a fix. Cite the sources and say where they are uncertain.

Opens a third-party assistant; its answer is its own, not cve.bz's. The prompt holds only this CVE's id and public links.

Red Hat

Red Hat rates this Moderate.

Red Hat's statement

This Moderate impact flaw in the training-operator component of Red Hat OpenShift AI allows authenticated users to bypass an immutability check for PyTorchJob resources. This could enable users to alter the spec.runPolicy.managedBy field after job creation, potentially disrupting resource quota management or hijacking job controller ownership, leading to a denial of service.

Red Hat's mitigation

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.

ProductPackageStateAdvisory
Red Hat OpenShift AI (RHOAI)rhoai/odh-training-operator-rhel9Under investigation

Contains Red Hat Security Data © Red Hat, Inc., licensed under CC BY 4.0. Source: https://access.redhat.com/security/data. Modified: reformatted. Red Hat's page for CVE-2026-83494.

Attack patterns (CAPEC)

The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits. More on the page of CWE-693 (17).

References

Check your stackJSON