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.
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Affected Vendors & Products
Advisories
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Fixes
Solution
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Workaround
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References
History
Sat, 26 Sep 2026 13:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | vLLM 0.22.0 through 0.23.0 Denial of Service via stop_token_ids | |
| First Time appeared |
Vllm
Vllm vllm |
|
| Weaknesses | CWE-20 | |
| CPEs | cpe:2.3:a:vllm:vllm:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Vllm
Vllm vllm |
|
| References |
| |
| Metrics |
cvssV3_1
|
Projects
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-09-26T13:23:21.865Z
Reserved: 2026-09-26T02:33:07.899Z
Link: CVE-2026-100652
No data.
Status : Received
Published: 2026-09-26T14:16:47.810
Modified: 2026-09-26T14:16:47.810
Link: CVE-2026-100652
No data.
OpenCVE Enrichment
Updated: 2026-09-26T16:00:09Z
Weaknesses