{"schema_version":"1","data":[{"id":34621,"advisory_id":"7f271ddf-55dc-4ddb-b8c3-cae6a2caf9e5","revision":1,"source_id":"core-cve","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-109227","source_published_at":"2026-10-12T14:04:31.362+00:00","published_at":"2026-10-25T09:25:31.142492+00:00","extraction_method":"structured","technologies":["core-cve","sglang"],"cve_ids":["CVE-2026-109227"],"event_types":["advisory"],"payload":{"kind":"advisory","title":"SGLang through 0.5.21 Memory Exhaustion DoS via Qwen-VL Video Preprocessing","summary":"SGLang through 0.5.21 contains an unbounded memory allocation vulnerability in preprocess_video in qwen_vl.py that decodes frames at full source resolution before applying max_pixels limits. Remote attackers can submit high-resolution videos to /v1/chat/completions on Qwen-VL deployments, and concurrent requests exhaust worker memory causing denial of service.","evidence":"cve:CVE-2026-109227","products":[{"name":{"value":"sglang","evidence":"/containers/cna/affected/0/product"},"prerequisites":[],"fixed_versions":[],"affected_versions":[]}],"severity":"high","structured":{"id":"CVE-2026-109227","aliases":["CVE-2026-109227"],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","baseScore":8.7,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","userInteraction":"NONE","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","subIntegrityImpact":"NONE","vulnIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","vulnConfidentialityImpact":"NONE"}},{"format":"CVSS","cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.5,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"NONE"}}],"affected":[{"repo":"https://github.com/sgl-project/sglang","vendor":"sgl-project","product":"sglang","versions":[{"status":"affected","version":"0","versionType":"semver","lessThanOrEqual":"0.5.21"}],"packageURL":"pkg:pypi/sglang","collectionURL":"https://pypi.org/project/sglang","defaultStatus":"unaffected"}],"modified":"2026-10-18T11:46:21.400Z","provider":"cve","references":["https://github.com/sgl-project/sglang/issues/43710","https://github.com/sgl-project/sglang/blob/v0.5.21/python/sglang/srt/multimodal/processors/qwen_vl.py#L267-L306","https://github.com/sgl-project/sglang","https://www.vulncheck.com/advisories/sglang-through-0.5.21-memory-exhaustion-dos-via-qwen-vl-video-preprocessing"],"provider_metadata":{"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-109227","role":"CISA Coordinator","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-10-18T11:46:17.742988Z"}}}],"references":[{"url":"https://github.com/sgl-project/sglang/issues/43710","tags":["exploit"]}],"providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-10-18T11:46:21.400Z"}}],"cna":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-10-12T14:04:31.362Z"}}},"related_cves":[{"value":"CVE-2026-109227","evidence":"/cveMetadata/cveId"}],"security_relevant":true,"severity_evidence":"/containers/cna/metrics"}}],"next_after":34621,"next_before":34621}