Vulnerability Details CVE-2026-116180
vLLM from 0.8.5 before 0.31.0 has a denial of service flaw. LogprobsTensors.empty_cpu() in vllm/v1/outputs.py allocates an uninitialized int32 tensor, and the V1 model runner leaves prompt positions reported as computed by a KV connector unwritten. A client sharing the engine can send prompt_logprobs (or echo with logprobs) against a connector-cached prefix, making tokenizer decode raise OverflowError, which crashes EngineCore and drops all co-tenant requests.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 16.2%
CVSS Severity
CVSS v3 Score 7.7
Products affected by CVE-2026-116180
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cpe:2.3:a:vllm:vllm:0.10.0
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cpe:2.3:a:vllm:vllm:0.10.1
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cpe:2.3:a:vllm:vllm:0.10.1.1
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cpe:2.3:a:vllm:vllm:0.10.2
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cpe:2.3:a:vllm:vllm:0.11.0
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cpe:2.3:a:vllm:vllm:0.11.1
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cpe:2.3:a:vllm:vllm:0.11.2
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cpe:2.3:a:vllm:vllm:0.12.0
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cpe:2.3:a:vllm:vllm:0.13.0
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cpe:2.3:a:vllm:vllm:0.14.0
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cpe:2.3:a:vllm:vllm:0.14.1
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cpe:2.3:a:vllm:vllm:0.15.0
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cpe:2.3:a:vllm:vllm:0.15.1
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cpe:2.3:a:vllm:vllm:0.15.2
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cpe:2.3:a:vllm:vllm:0.16.0
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cpe:2.3:a:vllm:vllm:0.16.1
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cpe:2.3:a:vllm:vllm:0.17.0
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cpe:2.3:a:vllm:vllm:0.17.1
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cpe:2.3:a:vllm:vllm:0.17.2
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cpe:2.3:a:vllm:vllm:0.18.0
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cpe:2.3:a:vllm:vllm:0.18.1
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cpe:2.3:a:vllm:vllm:0.18.2
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cpe:2.3:a:vllm:vllm:0.19.0
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cpe:2.3:a:vllm:vllm:0.19.1
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cpe:2.3:a:vllm:vllm:0.19.2
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cpe:2.3:a:vllm:vllm:0.20.0
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cpe:2.3:a:vllm:vllm:0.20.1
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cpe:2.3:a:vllm:vllm:0.20.2
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cpe:2.3:a:vllm:vllm:0.21.0
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cpe:2.3:a:vllm:vllm:0.21.1
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cpe:2.3:a:vllm:vllm:0.22.0
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cpe:2.3:a:vllm:vllm:0.22.1
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cpe:2.3:a:vllm:vllm:0.23.0
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cpe:2.3:a:vllm:vllm:0.23.1
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cpe:2.3:a:vllm:vllm:0.24.0
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cpe:2.3:a:vllm:vllm:0.25.0
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cpe:2.3:a:vllm:vllm:0.25.1
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cpe:2.3:a:vllm:vllm:0.26.0
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cpe:2.3:a:vllm:vllm:0.26.1
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cpe:2.3:a:vllm:vllm:0.27.0
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cpe:2.3:a:vllm:vllm:0.27.1
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cpe:2.3:a:vllm:vllm:0.28.0
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cpe:2.3:a:vllm:vllm:0.28.1
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cpe:2.3:a:vllm:vllm:0.29.0
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cpe:2.3:a:vllm:vllm:0.29.1
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cpe:2.3:a:vllm:vllm:0.30.0
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cpe:2.3:a:vllm:vllm:0.30.1
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cpe:2.3:a:vllm:vllm:0.8.5
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cpe:2.3:a:vllm:vllm:0.9.0
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cpe:2.3:a:vllm:vllm:0.9.0.1
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cpe:2.3:a:vllm:vllm:0.9.1
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cpe:2.3:a:vllm:vllm:0.9.2