CVE-2026-100652: Vllm

High severity, CVSS 7.5. EPSS: 0.4% chance of exploitation in the next 30 days.

vLLM versions 0.22.0 through 0.23.0 fail to validate stop_token_ids against vocabulary bounds in Rust HTTP and gRPC frontends, allowing out-of-vocabulary token IDs to reach MinTokensLogitsProcessor. Attackers can submit requests with min_tokens greater than zero and out-of-vocabulary stop_token_ids to trigger CUDA tensor indexing failures that leave EngineCore in a fatal state requiring service restart.

Affected products

• Vllm Vllm: from 0.22.0, before 0.24.0 (fixed in 0.24.0)

Published 2026-09-26. Last modified 2026-10-06.