{"affected":[{"defaultStatus":"unaffected","ecosystem":"pypi","packageName":"vllm","product":"vllm","source":"CNA: VulnCheck","vendor":"vllm-project","versions":[{"lessThan":"0.24.0","status":"affected","version":"0.22.0","versionType":"semver"},{"status":"unaffected","version":"0.24.0","versionType":"semver"}]}],"cpeConfigurations":[{"negate":false,"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:vllm:vllm:*:*:*:*:*:*:*:*","versionEndExcluding":"0.24.0","versionStartIncluding":"0.22.0","vulnerable":true}],"negate":false,"operator":"OR"}],"operator":"OR"}],"cveId":"CVE-2026-116172","cwes":["CWE-20"],"description":"vLLM from 0.22.0 before 0.24.0 contains an improper input validation vulnerability in the Rust gRPC converter that allows remote attackers to bypass max_logprobs limits via CandidateTokens.top_n. Attackers can send Generate or GenerateStream requests with oversized or integer-wrapping top_n values to trigger torch.topk failures that terminate EngineCore.","epss":{"date":"2026-11-04","percentile":0.27486,"score":0.00339},"exploits":[],"kev":null,"metrics":[{"score":8.2,"severity":"high","source":"CNA: VulnCheck","vector":"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","version":"4.0"},{"score":5.9,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},{"score":8.2,"severity":"high","source":"NVD: disclosure@vulncheck.com","vector":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","version":"4.0"},{"score":7.5,"severity":"high","source":"NVD: nvd@nist.gov","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},{"score":5.9,"severity":"medium","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}],"modifiedAt":1793809062897,"publishedAt":1792934413759,"references":[{"source":"CNA: VulnCheck","tags":["vendor-advisory"],"url":"https://github.com/vllm-project/vllm/security/advisories/GHSA-rwfw-xvg3-3937"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/vllm-0.22.0-before-0.24.0-dos-via-rust-grpc-candidatetokens-top-n"},{"source":"disclosure@vulncheck.com","tags":["Mitigation","Vendor Advisory"],"url":"https://github.com/vllm-project/vllm/security/advisories/GHSA-rwfw-xvg3-3937"},{"source":"disclosure@vulncheck.com","tags":["Third Party Advisory"],"url":"https://www.vulncheck.com/advisories/vllm-0.22.0-before-0.24.0-dos-via-rust-grpc-candidatetokens-top-n"}],"remediation":[],"revision":"792c1690b9f7ae1622767e3c90b2e7a8787fefacf009fa7249aa94a36a43ce00","sources":[{"modifiedAt":1793805725142,"name":"CNA: VulnCheck","retrievedAt":1793808590378,"url":"https://www.cve.org/CVERecord?id=CVE-2026-116172"},{"modifiedAt":1793809062897,"name":"NVD","retrievedAt":1793816320871,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-116172"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793808599443,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-116172"}],"ssvc":{"assessedAt":1793805713525,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"vLLM 0.22.0 before 0.24.0 DoS via Rust gRPC CandidateTokens.top_n","updatedAt":1793816320871}