High [CVE-2026-93592] Denial of Service via negative token ID input
This high-severity Red Hat Linux advisory covers CVE-2026-93592; related products: Red Hat AI Inference Server, Red Hat Enterprise Linux AI (RHEL AI) 3, Red Hat OpenShift AI (RHOAI).
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Summary
Denial of Service via negative token ID input. Red Hat rates this important (CVSS 7.5).
Weakness: CWE-617.
Affected products named by the advisory: Red Hat AI Inference Server; Red Hat Enterprise Linux AI (RHEL AI) 3; Red Hat OpenShift AI (RHOAI).
- < 0.28.0
Official advisory · high-confidence parse· fetched 8 days ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 8 days ago·verify at source
Mitigation checklist
- Restrict access to the inference service or filter requests at an upstream reverse proxy or API gateway: 1. Limit network access: Deploy firewall rules or OpenShift NetworkPolicies so that the inference server ports and endpoints are accessible only by authenticated, trusted internal clients. 2. Ingress request validation: Configure an API gateway or reverse proxy placed in front of the model server to inspect request payloads for the `/v1/embeddings` and `/pooling` endpoints, rejecting requests where the `input` array contains negative numbers, or restricting untrusted clients to submitting text prompt strings rather than raw token lists. Caveats: Inspecting request bodies at an intermediary gateway layer may introduce slight processing latency. Modifying reverse proxy rules or applying network policies may require a service configuration reload or restart, which can temporarily disrupt in-flight connections.
Official advisory · high-confidence parse· fetched 8 days ago·verify at source
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