{"action":"Upgrade vllm to 0.30.0 or later.","affected":[{"fixed":"0.30.0","introduced":"0"}],"component":"vllm","cve_ids":["CVE-2026-93841"],"ecosystem":"PyPI","epss":0.00237,"exploited":false,"fixed_versions":["0.30.0"],"id":"tcs_01M5KH95N567Q78VMWWPT590GT","modified_at":"2026-09-29T09:00:02.997765265Z","published_at":"2026-09-18T20:17:34.357Z","references":["https://osv.dev/vulnerability/PYSEC-2026-3999","https://github.com/vllm-project/vllm/blob/v0.29.0/vllm/v1/worker/gpu/sample/penalties.py#L241-L255","https://github.com/vllm-project/vllm/blob/v0.29.0/vllm/v1/worker/gpu/sample/penalties.py#L33-L37","https://www.vulncheck.com/advisories/vllm-through-0.29.0-adjacent-request-sampler-state-corruption-via-unvalidated-prompt-token-ids","https://github.com/vllm-project/vllm/pull/49081","https://github.com/vllm-project/vllm"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"PYSEC-2026-3999","url":"https://osv.dev/vulnerability/PYSEC-2026-3999"}],"summary":"vLLM through 0.29.0 contains a memory corruption vulnerability in the Triton _bincount_kernel where prompt token IDs index the penalty prompt-presence bitset without bounds checking against vocabulary"}