{"data":{"id":"eb9a26d8-3b5b-4540-8ed9-839f58fe1d11","title":"CVE-2025-46570: vLLM is an inference and serving engine for large language models (LLMs). Prior to version 0.9.0, when a new prompt is…","summary":"CVE-2025-46570 affects vLLM, an inference and serving engine for large language models, before version 0.9.0. When a new prompt is processed and the PageAttention mechanism finds a matching prefix chunk, prefill is faster, which shows up in TTFT (Time to First Token). These timing differences are large enough to be recognized and exploited.","solution":"Fixed in version 0.9.0.","labels":["security"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-46570","publishedAt":"2025-05-29T21:15:21.327Z","cveId":"CVE-2025-46570","cweIds":["CWE-208","CWE-203"],"cvssScore":"2.6","cvssSeverity":"low","severity":"low","attackType":["other"],"issueType":"vulnerability","affectedPackages":["vllm@< 0.9.0 (fixed: 0.9.0)"],"affectedPackageNames":["vllm"],"affectedPackageRefs":["pypi:vllm"],"affectedVendors":[],"affectedVendorsRaw":["vLLM"],"classifierModel":"claude-haiku-5-5","classifierPromptVersion":"v4","summaryPromptVersion":"v2","headline":"vLLM timing side channel in prefix cache matching during prefill","headlinePromptVersion":"h1","cvssVector":null,"attackVector":null,"attackComplexity":null,"privilegesRequired":null,"userInteraction":null,"exploitMaturity":"unknown","epssScore":0.0043,"epssCheckedAt":"2026-11-04T00:12:27.047Z","kevDateAdded":null,"advisoryAliases":["GHSA-4qjh-9fv9-r85r"],"affectedPackagesSource":"ghsa","affectedPackagesCheckedAt":"2026-10-10T03:53:43.656Z","patchAvailable":true,"disclosureDate":null,"fixReleasedAt":"2025-05-28T01:30:28.547Z","daysToFix":-1,"fixCheckedAt":"2026-10-29T21:44:28.282Z","capecIds":null,"crossRefCount":0,"attackSophistication":"advanced","impactType":["confidentiality"],"aiComponentTargeted":"inference","llmSpecific":true,"classifierConfidence":0.9,"researchCategory":null,"atlasIds":null,"fixes":[{"ecosystem":"pypi","name":"vllm","fixedVersion":"0.9.0","matchedVersion":"0.9.0","fixReleasedAt":"2025-05-28T01:30:28.547Z","daysToFix":-1,"match":"ecosystem","source":"tracked","status":"found","checkedAt":"2026-10-29T21:44:28.131Z"}]}}