{"schema":"threatline.record/2","record":{"id":"CVE-2026-100654","aliases":["GHSA-v5gm-qgmv-gc6c"],"summary":"vLLM before 0.29.0 Denial of Service via out-of-range stop_token_ids","details":"vLLM before 0.29.0 accepts user-controlled stop_token_ids on the OpenAI-compatible POST /v1/completions and POST /v1/chat/completions endpoints but validates only that the values are integers, not that each token id is within the model vocabulary/logits range. When min_tokens > 0, the stop token ids are used as logits indices to suppress stop tokens, so an out-of-range id reaches a CUDA indexing operation (index_put_) and triggers a device-side assertion. An authenticated API user can send a single malformed completion request that returns 500 Internal Server Error and puts EngineCore into a fatal state, causing subsequent requests to fail until the service is restarted (denial of service).","categories":["Unclassified"],"product":"vllm","vendor":"vllm-project","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-100654","source_modified_at":"2026-09-30T14:51:39.132Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"vllm","vendor":"vllm-project","versions":[{"version":"0","status":"affected","versionType":"semver","lessThan":"0.29.0"},{"version":"0.29.0","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-100654","source_modified_at":"2026-09-30T14:51:39.132Z","fetched_at":"2026-10-23T18:52:38.922436Z","package":{"name":"vllm","ecosystem":null},"version":"0.29.0","basis":"first unaffected version stated in the CVE record"}],"cvss":7.1,"severity":"High","kev":{"listed":false},"epss":{"probability":0.00314,"percentile":0.23062,"score_date":"2026-10-23"},"published_at":"2026-09-26T13:23:23.312Z","modified_at":"2026-09-30T14:51:39.132Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-100654","fetched_at":"2026-10-23T18:52:38.922436Z","source_modified_at":"2026-09-30T14:51:39.132Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-100654","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/vllm-project/vllm/security/advisories/GHSA-v5gm-qgmv-gc6c","tags":["vendor-advisory"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/vllm-before-0.29.0-denial-of-service-via-out-of-range-stop-token-ids","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"partial","assessed_at":"2026-09-30T14:51:29.949766Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-09-30T14:51:39.132Z","content_hash":"5643b6e8e2df71c9db4532ee51259677a0dc456e1af16e511ea4561ab1fd1387"}}