Medium severity5.9NVD Advisory· Published Sep 26, 2026· Updated Oct 6, 2026
CVE-2026-100652
CVE-2026-100652
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2Patches
Vulnerability mechanics
References
2- github.com/vllm-project/vllm/security/advisories/GHSA-qff2-492f-9fm4nvdExploitMitigationVendor Advisory
- www.vulncheck.com/advisories/vllm-0.22.0-through-0.23.0-denial-of-service-via-stop-token-idsnvdThird Party Advisory
News mentions
1- VLLM: Eight Vulnerabilities Disclosed Together, Patch Released in 0.29.0Vypr Intelligence · Sep 26, 2026