{"id":"CVE-2026-100652","summary":"vLLM 0.22.0 through 0.23.0 Denial of Service via stop_token_ids","details":"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.","aliases":["GHSA-qff2-492f-9fm4"],"modified":"2026-09-30T03:30:59.649480254Z","published":"2026-09-26T13:23:21.865Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/100xxx/CVE-2026-100652.json","cna_assigner":"VulnCheck","cwe_ids":["CWE-20"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/100xxx/CVE-2026-100652.json"},{"type":"ADVISORY","url":"https://github.com/vllm-project/vllm/security/advisories/GHSA-qff2-492f-9fm4"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-100652"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/vllm-0.22.0-through-0.23.0-denial-of-service-via-stop-token-ids"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/vllm-project/vllm","events":[{"introduced":"0b3ba88f165976e77ca5e6a7a3f5bba4562b80af"},{"fixed":"217c64a976869883fcf0c52a8cf8bc3c954d285b"}],"database_specific":{"extracted_events":[{"introduced":"0.22.0"},{"fixed":"0.24.0"},{"fixed":"0.23.0"}],"source":["AFFECTED_FIELD","DESCRIPTION"]}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-100652.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"}]}