{"schema":"threatline.record/2","record":{"id":"CVE-2026-116180","aliases":["GHSA-rhcx-5729-88vg"],"summary":"vLLM from 0.8.5 before 0.31.0 Cross-Tenant DoS via Uninitialized LogprobsTensors","details":"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.","categories":["Unclassified"],"product":"vllm","vendor":"vllm-project","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-116180","source_modified_at":"2026-10-25T13:20:19.199Z","fetched_at":"2026-10-25T16:01:37.004770Z","product":"vllm","vendor":"vllm-project","versions":[{"version":"0.8.5","status":"affected","versionType":"semver","lessThan":"0.31.0"},{"version":"0.31.0","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-116180","source_modified_at":"2026-10-25T13:20:19.199Z","fetched_at":"2026-10-25T16:01:37.004770Z","package":{"name":"vllm","ecosystem":null},"version":"0.31.0","basis":"first unaffected version stated in the CVE record"}],"cvss":8.3,"severity":"High","kev":{"listed":false},"epss":{"probability":null,"percentile":null,"score_date":null},"published_at":"2026-10-25T13:20:19.199Z","modified_at":"2026-10-25T13:20:19.199Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-116180","fetched_at":"2026-10-25T16:01:37.004770Z","source_modified_at":"2026-10-25T13:20:19.199Z"}],"sources":["CVE List"],"references":[{"source":"CVE List","url":"https://github.com/vllm-project/vllm/security/advisories/GHSA-rhcx-5729-88vg","tags":["vendor-advisory"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/vllm-from-0.8.5-before-0.31.0-cross-tenant-dos-via-uninitialized-logprobstensors","tags":["third-party-advisory"]}],"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":"2026-10-25T13:20:19.199Z","content_hash":"1a3dc020a86a3dd86a8f03e054c4706de944385bf11c7a99248f5bd142082902"}}