Description
vLLM from 0.22.0 before 0.24.0 contains an improper input validation vulnerability in the Rust gRPC Generate and GenerateStream service that forwards unchecked prompt token IDs to EngineCore. Attackers can submit requests with out-of-vocabulary prompt.token_ids values to trigger a fatal embedding lookup failure that terminates EngineCore and leaves the server unhealthy.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| vllm-project | vllm | 0.22.0 – < 0.24.0 | 0.24.0 |
Advisories 1
- WID-SEC-2026-4151 vllm: Mehrere Schwachstellen ermöglichen Denial of Service BSI CERT-Bund (WID) · Oct 25, 2026
References
- GitHub Security Advisory (GHSA-w2v2-5662-8v5q) vendor-advisory
- VulnCheck Advisory: vLLM 0.22.0 before 0.24.0 Denial of Service via Rust gRPC Generate third-party-advisory