{"schema":"threatline.record/2","record":{"id":"CVE-2026-115916","aliases":["GHSA-q97c-p368-75c4"],"summary":"vLLM: Out-of-vocabulary prompt token id passes input validation and triggers a CUDA device-side assert (engine crash / DoS)","details":"vLLM is an inference and serving engine for large language models. Prior to 0.32.0, vllm/tokenizers/hf.py computes max_token_id with an off-by-one upper bound, allowing a pre-tokenized prompt ID equal to the vocabulary size to pass validation. For a tensor-parallel size of one and an exact multiple-of-64 vocabulary, VocabParallelEmbedding.forward does not mask that value before F.embedding uses it, causing a CUDA device-side assertion and terminating the engine. This issue is fixed in version 0.32.0.","categories":["Unclassified"],"product":"vllm","vendor":"vllm-project","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-115916","source_modified_at":"2026-10-26T17:18:17.582Z","fetched_at":"2026-10-26T19:10:57.178988Z","product":"vllm","vendor":"vllm-project","versions":[{"version":"< 0.32.0","status":"affected"}],"defaultStatus":null}],"fixed_versions":[],"cvss":6.5,"severity":"Medium","kev":{"listed":false},"epss":{"probability":null,"percentile":null,"score_date":null},"published_at":"2026-10-26T17:18:17.582Z","modified_at":"2026-10-26T17:18:17.582Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-115916","fetched_at":"2026-10-26T19:10:57.178988Z","source_modified_at":"2026-10-26T17:18:17.582Z"}],"sources":["CVE List"],"references":[{"source":"CVE List","url":"https://github.com/vllm-project/vllm/security/advisories/GHSA-q97c-p368-75c4","tags":["x_refsource_CONFIRM"]},{"source":"CVE List","url":"https://github.com/vllm-project/vllm/pull/59491","tags":["x_refsource_MISC"]},{"source":"CVE List","url":"https://github.com/vllm-project/vllm/commit/37cecc8141e2dcba9dd534897a164d4baaf27229","tags":["x_refsource_MISC"]},{"source":"CVE List","url":"https://github.com/vllm-project/vllm/releases/tag/v0.32.0","tags":["x_refsource_MISC"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-26T17:18:17.582Z","content_hash":"e7ca396399c7ff04f85b428efef9af1a22d97dc4ff48879937dcdf9f44be2798"}}