{"affected":[{"defaultStatus":"unaffected","ecosystem":"pypi","packageName":"vllm","product":"vllm","source":"CNA: VulnCheck","vendor":"vllm-project","versions":[{"lessThan":"0.31.0","status":"affected","version":"0.19.0","versionType":"semver"},{"status":"unaffected","version":"0.31.0","versionType":"semver"}]}],"cveId":"CVE-2026-126399","cwes":["CWE-770"],"description":"vLLM from 0.19.0 before 0.31.0 contains a resource exhaustion vulnerability that allows inference clients to bypass the server frame limit by setting media_io_kwargs.video.num_frames in chat completion requests. Attackers can supply num_frames=-1 or a large value with many base64 JPEG frames, forcing VideoMediaIO to decode all frames and np.stack them, causing memory exhaustion.","epss":{"date":"2026-11-13","percentile":0.41684,"score":0.00476},"exploits":[],"kev":null,"metrics":[{"score":7.1,"severity":"high","source":"CNA: VulnCheck","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},{"score":6.5,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},{"score":7.1,"severity":"high","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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":6.5,"severity":"medium","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}],"modifiedAt":1794585311981,"publishedAt":1794562548994,"references":[{"source":"CNA: VulnCheck","tags":["vendor-advisory"],"url":"https://github.com/vllm-project/vllm/security/advisories/GHSA-vxqj-p4gw-9h4c"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/vllm-0.19.0-before-0.31.0-resource-exhaustion-via-request-level-num-frames"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/vllm-project/vllm/security/advisories/GHSA-vxqj-p4gw-9h4c"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://www.vulncheck.com/advisories/vllm-0.19.0-before-0.31.0-resource-exhaustion-via-request-level-num-frames"}],"remediation":[],"revision":"8a263adbcf4499f7788793a1f9698eb000bd86e0ffe58361ce1e37faa6da2cf2","sources":[{"modifiedAt":1794585311981,"name":"CNA: VulnCheck","retrievedAt":1794586213120,"url":"https://www.cve.org/CVERecord?id=CVE-2026-126399"},{"modifiedAt":1794565064380,"name":"NVD","retrievedAt":1794572196025,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-126399"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1794586219523,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-126399"}],"ssvc":{"assessedAt":1794583826279,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"vLLM 0.19.0 before 0.31.0 Resource Exhaustion via Request-Level num_frames","updatedAt":1794586219523}